[v1,17/17] rtc: Change nvmem reg_read/write return type

Message ID	20240605180238.2617808-8-joychakr@google.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org> Date: Wed, 5 Jun 2024 18:02:38 +0000 In-Reply-To: <20240605180238.2617808-1-joychakr@google.com> Mime-Version: 1.0 References: <20240605180238.2617808-1-joychakr@google.com> Message-ID: <20240605180238.2617808-8-joychakr@google.com> Subject: [PATCH v1 17/17] rtc: Change nvmem reg_read/write return type From: Joy Chakraborty <joychakr@google.com> To: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>, Lars-Peter Clausen <lars@metafoo.de>, Sakari Ailus <sakari.ailus@linux.intel.com>, Bingbu Cao <bingbu.cao@intel.com>, Zhihao Cheng <chengzhihao1@huawei.com>, Jerome Brunet <jbrunet@baylibre.com>, Martin Blumenstingl <martin.blumenstingl@googlemail.com> Cc: linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, linux-media@vger.kernel.org, linux-i2c@vger.kernel.org, linux-gpio@vger.kernel.org, linux-mtd@lists.infradead.org, linux-rtc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, linux-usb@vger.kernel.org, manugautam@google.com, Joy Chakraborty <joychakr@google.com>, kernel test robot <lkp@intel.com> Precedence: list Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" <linux-amlogic-bounces@lists.infradead.org> Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org
Series	nvmem: Handle change of return type in reg_read/write() definition \| expand [v1,00/17] nvmem: Handle change of return type in reg_read/write() definition [v1,01/17] hwmon: pmbus: adm1266: Change nvmem reg_read/write return type [v1,02/17] media: i2c: ov2740: Change nvmem reg_read/write return type [v1,03/17] media: i2c: video-i2c: Change nvmem reg_read/write return type [v1,04/17] iio: pressure: bmp280: Change nvmem reg_read/write return type [v1,05/17] misc: ds1682: Change nvmem reg_read/write return type [v1,06/17] misc: eeprom: at24: Change nvmem reg_read/write return type [v1,07/17] misc: eeprom: at25: Change nvmem reg_read/write return type [v1,08/17] misc: eeprom: 93xx46: Change nvmem reg_read/write return type [v1,09/17] misc: mchp_pci1xxxx: Change nvmem reg_read/write return type [v1,10/17] mtd: core: Change nvmem reg_read/write return type [v1,11/17] mtd: ubi: nvmem: Change nvmem reg_read/write return type [v1,12/17] soc: atmel: sfr: Change nvmem reg_read/write return type [v1,13/17] w1: slaves: w1_ds250x: Change nvmem reg_read/write return type [v1,14/17] thunderbolt: switch: Change nvmem reg_read/write return type [v1,15/17] thunderbolt: retimer: Change nvmem reg_read/write return type [v1,16/17] soc: tegra: fuse: Change nvmem reg_read/write return type [v1,17/17] rtc: Change nvmem reg_read/write return type

diff --git a/drivers/rtc/rtc-abx80x.c b/drivers/rtc/rtc-abx80x.c index fde2b8054c2e..415a575c904b 100644 --- a/drivers/rtc/rtc-abx80x.c +++ b/drivers/rtc/rtc-abx80x.c @@ -685,10 +685,11 @@ static int abx80x_setup_watchdog(struct abx80x_priv *priv) } #endif -static int abx80x_nvmem_xfer(struct abx80x_priv *priv, unsigned int offset, - void *val, size_t bytes, bool write) +static ssize_t abx80x_nvmem_xfer(struct abx80x_priv *priv, unsigned int offset, + void *val, size_t bytes, bool write) { int ret; + size_t byte_count = bytes; while (bytes) { u8 extram, reg, len, lower, upper; @@ -719,17 +720,17 @@ static int abx80x_nvmem_xfer(struct abx80x_priv *priv, unsigned int offset, bytes -= len; } - return 0; + return byte_count; } -static int abx80x_nvmem_read(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t abx80x_nvmem_read(void *priv, unsigned int offset, void *val, + size_t bytes) { return abx80x_nvmem_xfer(priv, offset, val, bytes, false); } -static int abx80x_nvmem_write(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t abx80x_nvmem_write(void *priv, unsigned int offset, void *val, + size_t bytes) { return abx80x_nvmem_xfer(priv, offset, val, bytes, true); } diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c index 7d99cd2c37a0..eb8e6947a7e3 100644 --- a/drivers/rtc/rtc-cmos.c +++ b/drivers/rtc/rtc-cmos.c @@ -639,8 +639,8 @@ static const struct rtc_class_ops cmos_rtc_ops = { #define NVRAM_OFFSET (RTC_REG_D + 1) -static int cmos_nvram_read(void *priv, unsigned int off, void *val, - size_t count) +static ssize_t cmos_nvram_read(void *priv, unsigned int off, void *val, + size_t count) { unsigned char *buf = val; int retval; @@ -660,8 +660,8 @@ static int cmos_nvram_read(void *priv, unsigned int off, void *val, return retval; } -static int cmos_nvram_write(void *priv, unsigned int off, void *val, - size_t count) +static ssize_t cmos_nvram_write(void *priv, unsigned int off, void *val, + size_t count) { struct cmos_rtc *cmos = priv; unsigned char *buf = val; diff --git a/drivers/rtc/rtc-ds1305.c b/drivers/rtc/rtc-ds1305.c index d4de401548b4..d59798c93dd8 100644 --- a/drivers/rtc/rtc-ds1305.c +++ b/drivers/rtc/rtc-ds1305.c @@ -504,34 +504,40 @@ static void msg_init(struct spi_message *m, struct spi_transfer *x, spi_message_add_tail(x, m); } -static int ds1305_nvram_read(void *priv, unsigned int off, void *buf, - size_t count) +static ssize_t ds1305_nvram_read(void *priv, unsigned int off, void *buf, + size_t count) { struct ds1305 *ds1305 = priv; struct spi_device *spi = ds1305->spi; u8 addr; struct spi_message m; struct spi_transfer x[2]; + int ret; addr = DS1305_NVRAM + off; msg_init(&m, x, &addr, count, NULL, buf); - return spi_sync(spi, &m); + ret = spi_sync(spi, &m); + + return ret < 0 ? ret : count; } -static int ds1305_nvram_write(void *priv, unsigned int off, void *buf, - size_t count) +static ssize_t ds1305_nvram_write(void *priv, unsigned int off, void *buf, + size_t count) { struct ds1305 *ds1305 = priv; struct spi_device *spi = ds1305->spi; u8 addr; struct spi_message m; struct spi_transfer x[2]; + int ret; addr = (DS1305_WRITE | DS1305_NVRAM) + off; msg_init(&m, x, &addr, count, buf, NULL); - return spi_sync(spi, &m); + ret = spi_sync(spi, &m); + + return ret < 0 ? ret : count; } /*----------------------------------------------------------------------*/ diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c index 506b7d1c2397..179bb3b930d9 100644 --- a/drivers/rtc/rtc-ds1307.c +++ b/drivers/rtc/rtc-ds1307.c @@ -1254,24 +1254,30 @@ static int ds1307_add_frequency_test(struct ds1307 *ds1307) /*----------------------------------------------------------------------*/ -static int ds1307_nvram_read(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t ds1307_nvram_read(void *priv, unsigned int offset, void *val, + size_t bytes) { struct ds1307 *ds1307 = priv; const struct chip_desc *chip = &chips[ds1307->type]; + int ret; - return regmap_bulk_read(ds1307->regmap, chip->nvram_offset + offset, - val, bytes); + ret = regmap_bulk_read(ds1307->regmap, chip->nvram_offset + offset, + val, bytes); + + return ret < 0 ? ret : bytes; } -static int ds1307_nvram_write(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t ds1307_nvram_write(void *priv, unsigned int offset, void *val, + size_t bytes) { struct ds1307 *ds1307 = priv; const struct chip_desc *chip = &chips[ds1307->type]; + int ret; + + ret = regmap_bulk_write(ds1307->regmap, chip->nvram_offset + offset, + val, bytes); - return regmap_bulk_write(ds1307->regmap, chip->nvram_offset + offset, - val, bytes); + return ret < 0 ? ret : bytes; } /*----------------------------------------------------------------------*/ diff --git a/drivers/rtc/rtc-ds1343.c b/drivers/rtc/rtc-ds1343.c index ed5a6ba89a3e..910ee0a0320c 100644 --- a/drivers/rtc/rtc-ds1343.c +++ b/drivers/rtc/rtc-ds1343.c @@ -123,20 +123,26 @@ static ssize_t ds1343_store_glitchfilter(struct device *dev, static DEVICE_ATTR(glitch_filter, S_IRUGO | S_IWUSR, ds1343_show_glitchfilter, ds1343_store_glitchfilter); -static int ds1343_nvram_write(void *priv, unsigned int off, void *val, - size_t bytes) +static ssize_t ds1343_nvram_write(void *priv, unsigned int off, void *val, + size_t bytes) { struct ds1343_priv *ds1343 = priv; + int ret; - return regmap_bulk_write(ds1343->map, DS1343_NVRAM + off, val, bytes); + ret = regmap_bulk_write(ds1343->map, DS1343_NVRAM + off, val, bytes); + + return ret < 0 ? ret : bytes; } -static int ds1343_nvram_read(void *priv, unsigned int off, void *val, - size_t bytes) +static ssize_t ds1343_nvram_read(void *priv, unsigned int off, void *val, + size_t bytes) { struct ds1343_priv *ds1343 = priv; + int ret; + + ret = regmap_bulk_read(ds1343->map, DS1343_NVRAM + off, val, bytes); - return regmap_bulk_read(ds1343->map, DS1343_NVRAM + off, val, bytes); + return ret < 0 ? ret : bytes; } static ssize_t ds1343_show_tricklecharger(struct device *dev, diff --git a/drivers/rtc/rtc-ds1511.c b/drivers/rtc/rtc-ds1511.c index 8b087d9556be..87128130e106 100644 --- a/drivers/rtc/rtc-ds1511.c +++ b/drivers/rtc/rtc-ds1511.c @@ -245,8 +245,8 @@ static const struct rtc_class_ops ds1511_rtc_ops = { .alarm_irq_enable = ds1511_rtc_alarm_irq_enable, }; -static int ds1511_nvram_read(void *priv, unsigned int pos, void *buf, - size_t size) +static ssize_t ds1511_nvram_read(void *priv, unsigned int pos, void *buf, + size_t size) { int i; @@ -254,11 +254,11 @@ static int ds1511_nvram_read(void *priv, unsigned int pos, void *buf, for (i = 0; i < size; i++) *(char *)buf++ = rtc_read(DS1511_RAMDATA); - return 0; + return size; } -static int ds1511_nvram_write(void *priv, unsigned int pos, void *buf, - size_t size) +static ssize_t ds1511_nvram_write(void *priv, unsigned int pos, void *buf, + size_t size) { int i; @@ -266,7 +266,7 @@ static int ds1511_nvram_write(void *priv, unsigned int pos, void *buf, for (i = 0; i < size; i++) rtc_write(*(char *)buf++, DS1511_RAMDATA); - return 0; + return size; } static int ds1511_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-ds1553.c b/drivers/rtc/rtc-ds1553.c index dbff5b621ef5..ac4304ec21fa 100644 --- a/drivers/rtc/rtc-ds1553.c +++ b/drivers/rtc/rtc-ds1553.c @@ -221,30 +221,32 @@ static const struct rtc_class_ops ds1553_rtc_ops = { .alarm_irq_enable = ds1553_rtc_alarm_irq_enable, }; -static int ds1553_nvram_read(void *priv, unsigned int pos, void *val, - size_t bytes) +static ssize_t ds1553_nvram_read(void *priv, unsigned int pos, void *val, + size_t bytes) { struct platform_device *pdev = priv; struct rtc_plat_data *pdata = platform_get_drvdata(pdev); void __iomem *ioaddr = pdata->ioaddr; + size_t bytes_read = bytes; u8 *buf = val; for (; bytes; bytes--) *buf++ = readb(ioaddr + pos++); - return 0; + return bytes_read; } -static int ds1553_nvram_write(void *priv, unsigned int pos, void *val, - size_t bytes) +static ssize_t ds1553_nvram_write(void *priv, unsigned int pos, void *val, + size_t bytes) { struct platform_device *pdev = priv; struct rtc_plat_data *pdata = platform_get_drvdata(pdev); void __iomem *ioaddr = pdata->ioaddr; + size_t bytes_written = bytes; u8 *buf = val; for (; bytes; bytes--) writeb(*buf++, ioaddr + pos++); - return 0; + return bytes_written; } static int ds1553_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-ds1685.c b/drivers/rtc/rtc-ds1685.c index 04dbf35cf3b7..0f113cff4b69 100644 --- a/drivers/rtc/rtc-ds1685.c +++ b/drivers/rtc/rtc-ds1685.c @@ -837,11 +837,12 @@ ds1685_rtc_ops = { }; /* ----------------------------------------------------------------------- */ -static int ds1685_nvram_read(void *priv, unsigned int pos, void *val, - size_t size) +static ssize_t ds1685_nvram_read(void *priv, unsigned int pos, void *val, + size_t size) { struct ds1685_priv *rtc = priv; struct mutex *rtc_mutex = &rtc->dev->ops_lock; + size_t size_read = size; ssize_t count; u8 *buf = val; int err; @@ -901,14 +902,15 @@ static int ds1685_nvram_read(void *priv, unsigned int pos, void *val, #endif /* !CONFIG_RTC_DRV_DS1689 */ mutex_unlock(rtc_mutex); - return 0; + return size_read; } -static int ds1685_nvram_write(void *priv, unsigned int pos, void *val, - size_t size) +static ssize_t ds1685_nvram_write(void *priv, unsigned int pos, void *val, + size_t size) { struct ds1685_priv *rtc = priv; struct mutex *rtc_mutex = &rtc->dev->ops_lock; + size_t size_written = size; ssize_t count; u8 *buf = val; int err; @@ -968,7 +970,7 @@ static int ds1685_nvram_write(void *priv, unsigned int pos, void *val, #endif /* !CONFIG_RTC_DRV_DS1689 */ mutex_unlock(rtc_mutex); - return 0; + return size_written; } /* ----------------------------------------------------------------------- */ diff --git a/drivers/rtc/rtc-ds1742.c b/drivers/rtc/rtc-ds1742.c index 6ae8b9a294fe..cdc3159dd69a 100644 --- a/drivers/rtc/rtc-ds1742.c +++ b/drivers/rtc/rtc-ds1742.c @@ -114,28 +114,30 @@ static const struct rtc_class_ops ds1742_rtc_ops = { .set_time = ds1742_rtc_set_time, }; -static int ds1742_nvram_read(void *priv, unsigned int pos, void *val, - size_t bytes) +static ssize_t ds1742_nvram_read(void *priv, unsigned int pos, void *val, + size_t bytes) { struct rtc_plat_data *pdata = priv; void __iomem *ioaddr = pdata->ioaddr_nvram; + ssize_t bytes_read = bytes; u8 *buf = val; for (; bytes; bytes--) *buf++ = readb(ioaddr + pos++); - return 0; + return bytes_read; } -static int ds1742_nvram_write(void *priv, unsigned int pos, void *val, - size_t bytes) +static ssize_t ds1742_nvram_write(void *priv, unsigned int pos, void *val, + size_t bytes) { struct rtc_plat_data *pdata = priv; void __iomem *ioaddr = pdata->ioaddr_nvram; + ssize_t bytes_written = bytes; u8 *buf = val; for (; bytes; bytes--) writeb(*buf++, ioaddr + pos++); - return 0; + return bytes_written; } static int ds1742_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-ds3232.c b/drivers/rtc/rtc-ds3232.c index 1485a6ae51e6..0ea97da761b6 100644 --- a/drivers/rtc/rtc-ds3232.c +++ b/drivers/rtc/rtc-ds3232.c @@ -460,22 +460,28 @@ static const struct rtc_class_ops ds3232_rtc_ops = { .alarm_irq_enable = ds3232_alarm_irq_enable, }; -static int ds3232_nvmem_read(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t ds3232_nvmem_read(void *priv, unsigned int offset, void *val, + size_t bytes) { struct regmap *ds3232_regmap = (struct regmap *)priv; + int ret; - return regmap_bulk_read(ds3232_regmap, DS3232_REG_SRAM_START + offset, - val, bytes); + ret = regmap_bulk_read(ds3232_regmap, DS3232_REG_SRAM_START + offset, + val, bytes); + + return ret < 0 ? ret : bytes; } -static int ds3232_nvmem_write(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t ds3232_nvmem_write(void *priv, unsigned int offset, void *val, + size_t bytes) { struct regmap *ds3232_regmap = (struct regmap *)priv; + int ret; + + ret = regmap_bulk_write(ds3232_regmap, DS3232_REG_SRAM_START + offset, + val, bytes); - return regmap_bulk_write(ds3232_regmap, DS3232_REG_SRAM_START + offset, - val, bytes); + return ret < 0 ? ret : bytes; } static int ds3232_probe(struct device *dev, struct regmap *regmap, int irq, diff --git a/drivers/rtc/rtc-isl12026.c b/drivers/rtc/rtc-isl12026.c index 2aabb9151d4c..0368cf3c95cd 100644 --- a/drivers/rtc/rtc-isl12026.c +++ b/drivers/rtc/rtc-isl12026.c @@ -274,8 +274,8 @@ static const struct rtc_class_ops isl12026_rtc_ops = { .set_time = isl12026_rtc_set_time, }; -static int isl12026_nvm_read(void *p, unsigned int offset, - void *val, size_t bytes) +static ssize_t isl12026_nvm_read(void *p, unsigned int offset, + void *val, size_t bytes) { struct isl12026 *priv = p; int ret; @@ -315,11 +315,11 @@ static int isl12026_nvm_read(void *p, unsigned int offset, return ret < 0 ? ret : -EIO; } - return 0; + return bytes; } -static int isl12026_nvm_write(void *p, unsigned int offset, - void *val, size_t bytes) +static ssize_t isl12026_nvm_write(void *p, unsigned int offset, + void *val, size_t bytes) { struct isl12026 *priv = p; int ret; @@ -372,7 +372,7 @@ static int isl12026_nvm_write(void *p, unsigned int offset, mutex_unlock(&priv->rtc->ops_lock); - return ret; + return ret < 0 ? ret : num_written; } static void isl12026_force_power_modes(struct i2c_client *client) diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c index e50c23ee1646..3523c18f4034 100644 --- a/drivers/rtc/rtc-isl1208.c +++ b/drivers/rtc/rtc-isl1208.c @@ -770,8 +770,8 @@ static const struct attribute_group isl1219_rtc_sysfs_files = { .attrs = isl1219_rtc_attrs, }; -static int isl1208_nvmem_read(void *priv, unsigned int off, void *buf, - size_t count) +static ssize_t isl1208_nvmem_read(void *priv, unsigned int off, void *buf, + size_t count) { struct isl1208_state *isl1208 = priv; struct i2c_client *client = to_i2c_client(isl1208->rtc->dev.parent); @@ -785,8 +785,8 @@ static int isl1208_nvmem_read(void *priv, unsigned int off, void *buf, return ret == 0 ? count : ret; } -static int isl1208_nvmem_write(void *priv, unsigned int off, void *buf, - size_t count) +static ssize_t isl1208_nvmem_write(void *priv, unsigned int off, void *buf, + size_t count) { struct isl1208_state *isl1208 = priv; struct i2c_client *client = to_i2c_client(isl1208->rtc->dev.parent); diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c index f0f6b9b6daec..53e21878effc 100644 --- a/drivers/rtc/rtc-m48t59.c +++ b/drivers/rtc/rtc-m48t59.c @@ -313,8 +313,8 @@ static const struct rtc_class_ops m48t59_rtc_ops = { .alarm_irq_enable = m48t59_rtc_alarm_irq_enable, }; -static int m48t59_nvram_read(void *priv, unsigned int offset, void *val, - size_t size) +static ssize_t m48t59_nvram_read(void *priv, unsigned int offset, void *val, + size_t size) { struct platform_device *pdev = priv; struct device *dev = &pdev->dev; @@ -331,11 +331,11 @@ static int m48t59_nvram_read(void *priv, unsigned int offset, void *val, spin_unlock_irqrestore(&m48t59->lock, flags); - return 0; + return cnt; } -static int m48t59_nvram_write(void *priv, unsigned int offset, void *val, - size_t size) +static ssize_t m48t59_nvram_write(void *priv, unsigned int offset, void *val, + size_t size) { struct platform_device *pdev = priv; struct device *dev = &pdev->dev; @@ -352,7 +352,7 @@ static int m48t59_nvram_write(void *priv, unsigned int offset, void *val, spin_unlock_irqrestore(&m48t59->lock, flags); - return 0; + return cnt; } static int m48t59_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-m48t86.c b/drivers/rtc/rtc-m48t86.c index dd4a62e2d39c..c10829617d2e 100644 --- a/drivers/rtc/rtc-m48t86.c +++ b/drivers/rtc/rtc-m48t86.c @@ -161,8 +161,8 @@ static const struct rtc_class_ops m48t86_rtc_ops = { .proc = m48t86_rtc_proc, }; -static int m48t86_nvram_read(void *priv, unsigned int off, void *buf, - size_t count) +static ssize_t m48t86_nvram_read(void *priv, unsigned int off, void *buf, + size_t count) { struct device *dev = priv; unsigned int i; @@ -170,11 +170,11 @@ static int m48t86_nvram_read(void *priv, unsigned int off, void *buf, for (i = 0; i < count; i++) ((u8 *)buf)[i] = m48t86_readb(dev, M48T86_NVRAM(off + i)); - return 0; + return count; } -static int m48t86_nvram_write(void *priv, unsigned int off, void *buf, - size_t count) +static ssize_t m48t86_nvram_write(void *priv, unsigned int off, void *buf, + size_t count) { struct device *dev = priv; unsigned int i; @@ -182,7 +182,7 @@ static int m48t86_nvram_write(void *priv, unsigned int off, void *buf, for (i = 0; i < count; i++) m48t86_writeb(dev, ((u8 *)buf)[i], M48T86_NVRAM(off + i)); - return 0; + return count; } /* diff --git a/drivers/rtc/rtc-max31335.c b/drivers/rtc/rtc-max31335.c index a2441e5c2c74..03f29ed19e58 100644 --- a/drivers/rtc/rtc-max31335.c +++ b/drivers/rtc/rtc-max31335.c @@ -496,22 +496,28 @@ static struct clk_init_data max31335_clk_init = { .ops = &max31335_clkout_ops, }; -static int max31335_nvmem_reg_read(void *priv, unsigned int offset, - void *val, size_t bytes) +static ssize_t max31335_nvmem_reg_read(void *priv, unsigned int offset, + void *val, size_t bytes) { struct max31335_data *max31335 = priv; unsigned int reg = MAX31335_TS0_SEC_1_128 + offset; + int ret; + + ret = regmap_bulk_read(max31335->regmap, reg, val, bytes); - return regmap_bulk_read(max31335->regmap, reg, val, bytes); + return ret < 0 ? ret : bytes; } -static int max31335_nvmem_reg_write(void *priv, unsigned int offset, - void *val, size_t bytes) +static ssize_t max31335_nvmem_reg_write(void *priv, unsigned int offset, + void *val, size_t bytes) { struct max31335_data *max31335 = priv; unsigned int reg = MAX31335_TS0_SEC_1_128 + offset; + int ret; + + ret = regmap_bulk_write(max31335->regmap, reg, val, bytes); - return regmap_bulk_write(max31335->regmap, reg, val, bytes); + return ret < 0 ? ret : bytes; } static struct nvmem_config max31335_nvmem_cfg = { diff --git a/drivers/rtc/rtc-meson.c b/drivers/rtc/rtc-meson.c index db1d626edca5..0e4d05a4c68d 100644 --- a/drivers/rtc/rtc-meson.c +++ b/drivers/rtc/rtc-meson.c @@ -255,28 +255,34 @@ static const struct rtc_class_ops meson_rtc_ops = { /* NVMEM interface layer functions */ -static int meson_rtc_regmem_read(void *context, unsigned int offset, - void *buf, size_t bytes) +static ssize_t meson_rtc_regmem_read(void *context, unsigned int offset, + void *buf, size_t bytes) { struct meson_rtc *rtc = context; unsigned int read_offset, read_size; + int ret; read_offset = RTC_REGMEM_0 + (offset / 4); read_size = bytes / 4; - return regmap_bulk_read(rtc->serial, read_offset, buf, read_size); + ret = regmap_bulk_read(rtc->serial, read_offset, buf, read_size); + + return ret < 0 ? ret : bytes; } -static int meson_rtc_regmem_write(void *context, unsigned int offset, - void *buf, size_t bytes) +static ssize_t meson_rtc_regmem_write(void *context, unsigned int offset, + void *buf, size_t bytes) { struct meson_rtc *rtc = context; unsigned int write_offset, write_size; + int ret; write_offset = RTC_REGMEM_0 + (offset / 4); write_size = bytes / 4; - return regmap_bulk_write(rtc->serial, write_offset, buf, write_size); + ret = regmap_bulk_write(rtc->serial, write_offset, buf, write_size); + + return ret < 0 ? ret : bytes; } static int meson_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c index c6155c48a4ac..81cad3c3690b 100644 --- a/drivers/rtc/rtc-omap.c +++ b/drivers/rtc/rtc-omap.c @@ -685,8 +685,8 @@ static struct pinctrl_desc rtc_pinctrl_desc = { .owner = THIS_MODULE, }; -static int omap_rtc_scratch_read(void *priv, unsigned int offset, void *_val, - size_t bytes) +static ssize_t omap_rtc_scratch_read(void *priv, unsigned int offset, void *_val, + size_t bytes) { struct omap_rtc *rtc = priv; u32 *val = _val; @@ -696,11 +696,11 @@ static int omap_rtc_scratch_read(void *priv, unsigned int offset, void *_val, val[i] = rtc_readl(rtc, OMAP_RTC_SCRATCH0_REG + offset + (i * 4)); - return 0; + return bytes; } -static int omap_rtc_scratch_write(void *priv, unsigned int offset, void *_val, - size_t bytes) +static ssize_t omap_rtc_scratch_write(void *priv, unsigned int offset, void *_val, + size_t bytes) { struct omap_rtc *rtc = priv; u32 *val = _val; @@ -712,7 +712,7 @@ static int omap_rtc_scratch_write(void *priv, unsigned int offset, void *_val, OMAP_RTC_SCRATCH0_REG + offset + (i * 4), val[i]); rtc->type->lock(rtc); - return 0; + return bytes; } static struct nvmem_config omap_rtc_nvmem_config = { diff --git a/drivers/rtc/rtc-pcf2127.c b/drivers/rtc/rtc-pcf2127.c index 9c04c4e1a49c..0303cf51fb3e 100644 --- a/drivers/rtc/rtc-pcf2127.c +++ b/drivers/rtc/rtc-pcf2127.c @@ -361,8 +361,8 @@ static int pcf2127_rtc_ioctl(struct device *dev, } } -static int pcf2127_nvmem_read(void *priv, unsigned int offset, - void *val, size_t bytes) +static ssize_t pcf2127_nvmem_read(void *priv, unsigned int offset, + void *val, size_t bytes) { struct pcf2127 *pcf2127 = priv; int ret; @@ -373,12 +373,14 @@ static int pcf2127_nvmem_read(void *priv, unsigned int offset, if (ret) return ret; - return regmap_bulk_read(pcf2127->regmap, PCF2127_REG_RAM_RD_CMD, - val, bytes); + ret = regmap_bulk_read(pcf2127->regmap, PCF2127_REG_RAM_RD_CMD, + val, bytes); + + return ret < 0 ? ret : bytes; } -static int pcf2127_nvmem_write(void *priv, unsigned int offset, - void *val, size_t bytes) +static ssize_t pcf2127_nvmem_write(void *priv, unsigned int offset, + void *val, size_t bytes) { struct pcf2127 *pcf2127 = priv; int ret; @@ -389,8 +391,10 @@ static int pcf2127_nvmem_write(void *priv, unsigned int offset, if (ret) return ret; - return regmap_bulk_write(pcf2127->regmap, PCF2127_REG_RAM_WRT_CMD, - val, bytes); + ret = regmap_bulk_write(pcf2127->regmap, PCF2127_REG_RAM_WRT_CMD, + val, bytes); + + return ret < 0 ? ret : bytes; } /* watchdog driver */ diff --git a/drivers/rtc/rtc-pcf85063.c b/drivers/rtc/rtc-pcf85063.c index fdbc07f14036..bccb55b4985c 100644 --- a/drivers/rtc/rtc-pcf85063.c +++ b/drivers/rtc/rtc-pcf85063.c @@ -319,16 +319,24 @@ static const struct rtc_class_ops pcf85063_rtc_ops = { .ioctl = pcf85063_ioctl, }; -static int pcf85063_nvmem_read(void *priv, unsigned int offset, - void *val, size_t bytes) +static ssize_t pcf85063_nvmem_read(void *priv, unsigned int offset, + void *val, size_t bytes) { - return regmap_read(priv, PCF85063_REG_RAM, val); + int ret; + + ret = regmap_read(priv, PCF85063_REG_RAM, val); + + return ret < 0 ? ret : bytes; } -static int pcf85063_nvmem_write(void *priv, unsigned int offset, - void *val, size_t bytes) +static ssize_t pcf85063_nvmem_write(void *priv, unsigned int offset, + void *val, size_t bytes) { - return regmap_write(priv, PCF85063_REG_RAM, *(u8 *)val); + int ret; + + ret = regmap_write(priv, PCF85063_REG_RAM, *(u8 *)val); + + return ret < 0 ? ret : bytes; } static int pcf85063_load_capacitance(struct pcf85063 *pcf85063, diff --git a/drivers/rtc/rtc-pcf85363.c b/drivers/rtc/rtc-pcf85363.c index 540042b9eec8..3ad91f2ee417 100644 --- a/drivers/rtc/rtc-pcf85363.c +++ b/drivers/rtc/rtc-pcf85363.c @@ -319,26 +319,32 @@ static const struct rtc_class_ops rtc_ops = { .alarm_irq_enable = pcf85363_rtc_alarm_irq_enable, }; -static int pcf85363_nvram_read(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t pcf85363_nvram_read(void *priv, unsigned int offset, void *val, + size_t bytes) { struct pcf85363 *pcf85363 = priv; + int ret; - return regmap_bulk_read(pcf85363->regmap, CTRL_RAM + offset, - val, bytes); + ret = regmap_bulk_read(pcf85363->regmap, CTRL_RAM + offset, + val, bytes); + + return ret < 0 ? ret : bytes; } -static int pcf85363_nvram_write(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t pcf85363_nvram_write(void *priv, unsigned int offset, void *val, + size_t bytes) { struct pcf85363 *pcf85363 = priv; + int ret; - return regmap_bulk_write(pcf85363->regmap, CTRL_RAM + offset, - val, bytes); + ret = regmap_bulk_write(pcf85363->regmap, CTRL_RAM + offset, + val, bytes); + + return ret < 0 ? ret : bytes; } -static int pcf85x63_nvram_read(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t pcf85x63_nvram_read(void *priv, unsigned int offset, void *val, + size_t bytes) { struct pcf85363 *pcf85363 = priv; unsigned int tmp_val; @@ -347,18 +353,21 @@ static int pcf85x63_nvram_read(void *priv, unsigned int offset, void *val, ret = regmap_read(pcf85363->regmap, CTRL_RAMBYTE, &tmp_val); (*(unsigned char *) val) = (unsigned char) tmp_val; - return ret; + return ret < 0 ? ret : bytes; } -static int pcf85x63_nvram_write(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t pcf85x63_nvram_write(void *priv, unsigned int offset, void *val, + size_t bytes) { struct pcf85363 *pcf85363 = priv; unsigned char tmp_val; + int ret; tmp_val = *((unsigned char *)val); - return regmap_write(pcf85363->regmap, CTRL_RAMBYTE, - (unsigned int)tmp_val); + ret = regmap_write(pcf85363->regmap, CTRL_RAMBYTE, + (unsigned int)tmp_val); + + return ret < 0 ? ret : bytes; } static const struct pcf85x63_config pcf_85263_config = { diff --git a/drivers/rtc/rtc-rp5c01.c b/drivers/rtc/rtc-rp5c01.c index 44afa6d996e7..156f9086caab 100644 --- a/drivers/rtc/rtc-rp5c01.c +++ b/drivers/rtc/rtc-rp5c01.c @@ -160,10 +160,11 @@ static const struct rtc_class_ops rp5c01_rtc_ops = { * byte is stored in BLOCK10, the low nibble in BLOCK11. */ -static int rp5c01_nvram_read(void *_priv, unsigned int pos, void *val, - size_t bytes) +static ssize_t rp5c01_nvram_read(void *_priv, unsigned int pos, void *val, + size_t bytes) { struct rp5c01_priv *priv = _priv; + size_t bytes_read = bytes; u8 *buf = val; spin_lock_irq(&priv->lock); @@ -185,13 +186,14 @@ static int rp5c01_nvram_read(void *_priv, unsigned int pos, void *val, } spin_unlock_irq(&priv->lock); - return 0; + return bytes_read; } -static int rp5c01_nvram_write(void *_priv, unsigned int pos, void *val, - size_t bytes) +static ssize_t rp5c01_nvram_write(void *_priv, unsigned int pos, void *val, + size_t bytes) { struct rp5c01_priv *priv = _priv; + size_t bytes_written = bytes; u8 *buf = val; spin_lock_irq(&priv->lock); @@ -212,7 +214,7 @@ static int rp5c01_nvram_write(void *_priv, unsigned int pos, void *val, } spin_unlock_irq(&priv->lock); - return 0; + return bytes_written; } static int __init rp5c01_rtc_probe(struct platform_device *dev) diff --git a/drivers/rtc/rtc-rv3028.c b/drivers/rtc/rtc-rv3028.c index 2f001c59c61d..3e2c6497f4d7 100644 --- a/drivers/rtc/rtc-rv3028.c +++ b/drivers/rtc/rtc-rv3028.c @@ -600,20 +600,28 @@ static int rv3028_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) } } -static int rv3028_nvram_write(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t rv3028_nvram_write(void *priv, unsigned int offset, void *val, + size_t bytes) { - return regmap_bulk_write(priv, RV3028_RAM1 + offset, val, bytes); + int ret; + + ret = regmap_bulk_write(priv, RV3028_RAM1 + offset, val, bytes); + + return ret < 0 ? ret : bytes; } -static int rv3028_nvram_read(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t rv3028_nvram_read(void *priv, unsigned int offset, void *val, + size_t bytes) { - return regmap_bulk_read(priv, RV3028_RAM1 + offset, val, bytes); + int ret; + + ret = regmap_bulk_read(priv, RV3028_RAM1 + offset, val, bytes); + + return ret < 0 ? ret : bytes; } -static int rv3028_eeprom_write(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t rv3028_eeprom_write(void *priv, unsigned int offset, void *val, + size_t bytes) { struct rv3028_data *rv3028 = priv; u32 status, eerd; @@ -655,11 +663,11 @@ static int rv3028_eeprom_write(void *priv, unsigned int offset, void *val, restore_eerd: rv3028_exit_eerd(rv3028, eerd); - return ret; + return ret < 0 ? ret : bytes; } -static int rv3028_eeprom_read(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t rv3028_eeprom_read(void *priv, unsigned int offset, void *val, + size_t bytes) { struct rv3028_data *rv3028 = priv; u32 status, eerd, data; @@ -700,7 +708,7 @@ static int rv3028_eeprom_read(void *priv, unsigned int offset, void *val, restore_eerd: rv3028_exit_eerd(rv3028, eerd); - return ret; + return ret < 0 ? ret : bytes; } #ifdef CONFIG_COMMON_CLK diff --git a/drivers/rtc/rtc-rv3029c2.c b/drivers/rtc/rtc-rv3029c2.c index 4a81feeb00ff..63466d76eaa1 100644 --- a/drivers/rtc/rtc-rv3029c2.c +++ b/drivers/rtc/rtc-rv3029c2.c @@ -472,16 +472,24 @@ static int rv3029_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) } } -static int rv3029_nvram_write(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t rv3029_nvram_write(void *priv, unsigned int offset, void *val, + size_t bytes) { - return regmap_bulk_write(priv, RV3029_RAM_PAGE + offset, val, bytes); + int ret; + + ret = regmap_bulk_write(priv, RV3029_RAM_PAGE + offset, val, bytes); + + return ret < 0 ? ret : bytes; } -static int rv3029_nvram_read(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t rv3029_nvram_read(void *priv, unsigned int offset, void *val, + size_t bytes) { - return regmap_bulk_read(priv, RV3029_RAM_PAGE + offset, val, bytes); + int ret; + + ret = regmap_bulk_read(priv, RV3029_RAM_PAGE + offset, val, bytes); + + return ret < 0 ? ret : bytes; } static const struct rv3029_trickle_tab_elem { diff --git a/drivers/rtc/rtc-rv3032.c b/drivers/rtc/rtc-rv3032.c index 35b2e36b426a..179ea03725c1 100644 --- a/drivers/rtc/rtc-rv3032.c +++ b/drivers/rtc/rtc-rv3032.c @@ -484,17 +484,25 @@ static int rv3032_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) } } -static int rv3032_nvram_write(void *priv, unsigned int offset, void *val, size_t bytes) +static ssize_t rv3032_nvram_write(void *priv, unsigned int offset, void *val, size_t bytes) { - return regmap_bulk_write(priv, RV3032_RAM1 + offset, val, bytes); + int ret; + + ret = regmap_bulk_write(priv, RV3032_RAM1 + offset, val, bytes); + + return ret < 0 ? ret : bytes; } -static int rv3032_nvram_read(void *priv, unsigned int offset, void *val, size_t bytes) +static ssize_t rv3032_nvram_read(void *priv, unsigned int offset, void *val, size_t bytes) { - return regmap_bulk_read(priv, RV3032_RAM1 + offset, val, bytes); + int ret; + + ret = regmap_bulk_read(priv, RV3032_RAM1 + offset, val, bytes); + + return ret < 0 ? ret : bytes; } -static int rv3032_eeprom_write(void *priv, unsigned int offset, void *val, size_t bytes) +static ssize_t rv3032_eeprom_write(void *priv, unsigned int offset, void *val, size_t bytes) { struct rv3032_data *rv3032 = priv; u32 status, eerd; @@ -532,10 +540,10 @@ static int rv3032_eeprom_write(void *priv, unsigned int offset, void *val, size_ exit_eerd: rv3032_exit_eerd(rv3032, eerd); - return ret; + return ret < 0 ? ret : bytes; } -static int rv3032_eeprom_read(void *priv, unsigned int offset, void *val, size_t bytes) +static ssize_t rv3032_eeprom_read(void *priv, unsigned int offset, void *val, size_t bytes) { struct rv3032_data *rv3032 = priv; u32 status, eerd, data; @@ -572,7 +580,7 @@ static int rv3032_eeprom_read(void *priv, unsigned int offset, void *val, size_t exit_eerd: rv3032_exit_eerd(rv3032, eerd); - return ret; + return ret < 0 ? ret : bytes; } static int rv3032_trickle_charger_setup(struct device *dev, struct rv3032_data *rv3032) diff --git a/drivers/rtc/rtc-rv8803.c b/drivers/rtc/rtc-rv8803.c index 1327251e527c..a6b02b78b0e6 100644 --- a/drivers/rtc/rtc-rv8803.c +++ b/drivers/rtc/rtc-rv8803.c @@ -536,14 +536,18 @@ static int rv8803_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) } } -static int rv8803_nvram_write(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t rv8803_nvram_write(void *priv, unsigned int offset, void *val, + size_t bytes) { - return rv8803_write_reg(priv, RV8803_RAM, *(u8 *)val); + int ret; + + ret = rv8803_write_reg(priv, RV8803_RAM, *(u8 *)val); + + return ret < 0 ? ret : bytes; } -static int rv8803_nvram_read(void *priv, unsigned int offset, - void *val, size_t bytes) +static ssize_t rv8803_nvram_read(void *priv, unsigned int offset, + void *val, size_t bytes) { int ret; @@ -553,7 +557,7 @@ static int rv8803_nvram_read(void *priv, unsigned int offset, *(u8 *)val = ret; - return 0; + return ret < 0 ? ret : bytes; } static const struct rtc_class_ops rv8803_rtc_ops = { diff --git a/drivers/rtc/rtc-rx8581.c b/drivers/rtc/rtc-rx8581.c index 48efd61a114d..e0d49c2861f2 100644 --- a/drivers/rtc/rtc-rx8581.c +++ b/drivers/rtc/rtc-rx8581.c @@ -187,26 +187,32 @@ static const struct rtc_class_ops rx8581_rtc_ops = { .set_time = rx8581_rtc_set_time, }; -static int rx8571_nvram_read(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t rx8571_nvram_read(void *priv, unsigned int offset, void *val, + size_t bytes) { struct rx8581 *rx8581 = priv; + int ret; - return regmap_bulk_read(rx8581->regmap, RX8571_USER_RAM + offset, - val, bytes); + ret = regmap_bulk_read(rx8581->regmap, RX8571_USER_RAM + offset, + val, bytes); + + return ret < 0 ? ret : bytes; } -static int rx8571_nvram_write(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t rx8571_nvram_write(void *priv, unsigned int offset, void *val, + size_t bytes) { struct rx8581 *rx8581 = priv; + int ret; - return regmap_bulk_write(rx8581->regmap, RX8571_USER_RAM + offset, - val, bytes); + ret = regmap_bulk_write(rx8581->regmap, RX8571_USER_RAM + offset, + val, bytes); + + return ret < 0 ? ret : bytes; } -static int rx85x1_nvram_read(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t rx85x1_nvram_read(void *priv, unsigned int offset, void *val, + size_t bytes) { struct rx8581 *rx8581 = priv; unsigned int tmp_val; @@ -215,18 +221,21 @@ static int rx85x1_nvram_read(void *priv, unsigned int offset, void *val, ret = regmap_read(rx8581->regmap, RX8581_REG_RAM, &tmp_val); (*(unsigned char *)val) = (unsigned char) tmp_val; - return ret; + return ret < 0 ? ret : bytes; } -static int rx85x1_nvram_write(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t rx85x1_nvram_write(void *priv, unsigned int offset, void *val, + size_t bytes) { struct rx8581 *rx8581 = priv; unsigned char tmp_val; + int ret; tmp_val = *((unsigned char *)val); - return regmap_write(rx8581->regmap, RX8581_REG_RAM, - (unsigned int)tmp_val); + ret = regmap_write(rx8581->regmap, RX8581_REG_RAM, + (unsigned int)tmp_val); + + return ret < 0 ? ret : bytes; } static const struct rx85x1_config rx8581_config = { diff --git a/drivers/rtc/rtc-stk17ta8.c b/drivers/rtc/rtc-stk17ta8.c index 7cb6be1b7815..85d811b68a9b 100644 --- a/drivers/rtc/rtc-stk17ta8.c +++ b/drivers/rtc/rtc-stk17ta8.c @@ -230,28 +230,30 @@ static const struct rtc_class_ops stk17ta8_rtc_ops = { .alarm_irq_enable = stk17ta8_rtc_alarm_irq_enable, }; -static int stk17ta8_nvram_read(void *priv, unsigned int pos, void *val, - size_t bytes) +static ssize_t stk17ta8_nvram_read(void *priv, unsigned int pos, void *val, + size_t bytes) { struct rtc_plat_data *pdata = priv; void __iomem *ioaddr = pdata->ioaddr; + size_t bytes_read = bytes; u8 *buf = val; for (; bytes; bytes--) *buf++ = readb(ioaddr + pos++); - return 0; + return bytes_read; } -static int stk17ta8_nvram_write(void *priv, unsigned int pos, void *val, - size_t bytes) +static ssize_t stk17ta8_nvram_write(void *priv, unsigned int pos, void *val, + size_t bytes) { struct rtc_plat_data *pdata = priv; void __iomem *ioaddr = pdata->ioaddr; + size_t bytes_written = bytes; u8 *buf = val; for (; bytes; bytes--) writeb(*buf++, ioaddr + pos++); - return 0; + return bytes_written; } static int stk17ta8_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-sun6i.c b/drivers/rtc/rtc-sun6i.c index 8e0c66906103..62fda0f86364 100644 --- a/drivers/rtc/rtc-sun6i.c +++ b/drivers/rtc/rtc-sun6i.c @@ -675,7 +675,7 @@ static const struct rtc_class_ops sun6i_rtc_ops = { .alarm_irq_enable = sun6i_rtc_alarm_irq_enable }; -static int sun6i_rtc_nvmem_read(void *priv, unsigned int offset, void *_val, size_t bytes) +static ssize_t sun6i_rtc_nvmem_read(void *priv, unsigned int offset, void *_val, size_t bytes) { struct sun6i_rtc_dev *chip = priv; u32 *val = _val; @@ -684,10 +684,10 @@ static int sun6i_rtc_nvmem_read(void *priv, unsigned int offset, void *_val, siz for (i = 0; i < bytes / 4; ++i) val[i] = readl(chip->base + SUN6I_GP_DATA + offset + 4 * i); - return 0; + return bytes; } -static int sun6i_rtc_nvmem_write(void *priv, unsigned int offset, void *_val, size_t bytes) +static ssize_t sun6i_rtc_nvmem_write(void *priv, unsigned int offset, void *_val, size_t bytes) { struct sun6i_rtc_dev *chip = priv; u32 *val = _val; @@ -696,7 +696,7 @@ static int sun6i_rtc_nvmem_write(void *priv, unsigned int offset, void *_val, si for (i = 0; i < bytes / 4; ++i) writel(val[i], chip->base + SUN6I_GP_DATA + offset + 4 * i); - return 0; + return bytes; } static struct nvmem_config sun6i_rtc_nvmem_cfg = { diff --git a/drivers/rtc/rtc-ti-k3.c b/drivers/rtc/rtc-ti-k3.c index ec759d8f7023..9a1097fcdad6 100644 --- a/drivers/rtc/rtc-ti-k3.c +++ b/drivers/rtc/rtc-ti-k3.c @@ -483,16 +483,19 @@ static const struct rtc_class_ops ti_k3_rtc_ops = { .alarm_irq_enable = ti_k3_rtc_alarm_irq_enable, }; -static int ti_k3_rtc_scratch_read(void *priv_data, unsigned int offset, - void *val, size_t bytes) +static ssize_t ti_k3_rtc_scratch_read(void *priv_data, unsigned int offset, + void *val, size_t bytes) { struct ti_k3_rtc *priv = (struct ti_k3_rtc *)priv_data; + int ret; + + ret = regmap_bulk_read(priv->regmap, REG_K3RTC_SCRATCH0 + offset, val, bytes / 4); - return regmap_bulk_read(priv->regmap, REG_K3RTC_SCRATCH0 + offset, val, bytes / 4); + return ret < 0 ? ret : bytes; } -static int ti_k3_rtc_scratch_write(void *priv_data, unsigned int offset, - void *val, size_t bytes) +static ssize_t ti_k3_rtc_scratch_write(void *priv_data, unsigned int offset, + void *val, size_t bytes) { struct ti_k3_rtc *priv = (struct ti_k3_rtc *)priv_data; int ret; @@ -501,7 +504,8 @@ static int ti_k3_rtc_scratch_write(void *priv_data, unsigned int offset, if (ret) return ret; - return k3rtc_fence(priv); + ret = k3rtc_fence(priv); + return ret < 0 ? ret : bytes; } static struct nvmem_config ti_k3_rtc_nvmem_config = { diff --git a/drivers/rtc/rtc-twl.c b/drivers/rtc/rtc-twl.c index 13f8ce08243c..b770a5cc1aad 100644 --- a/drivers/rtc/rtc-twl.c +++ b/drivers/rtc/rtc-twl.c @@ -487,16 +487,24 @@ static const struct rtc_class_ops twl_rtc_ops = { .alarm_irq_enable = twl_rtc_alarm_irq_enable, }; -static int twl_nvram_read(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t twl_nvram_read(void *priv, unsigned int offset, void *val, + size_t bytes) { - return twl_i2c_read((long)priv, val, offset, bytes); + int ret; + + ret = twl_i2c_read((long)priv, val, offset, bytes); + + return ret < 0 ? ret : bytes; } -static int twl_nvram_write(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t twl_nvram_write(void *priv, unsigned int offset, void *val, + size_t bytes) { - return twl_i2c_write((long)priv, val, offset, bytes); + int ret; + + ret = twl_i2c_write((long)priv, val, offset, bytes); + + return ret < 0 ? ret : bytes; } /*----------------------------------------------------------------------*/

[v1,17/17] rtc: Change nvmem reg_read/write return type

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Patch