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AJvYcCUJFsWqHhyGh4o2t5cRQSzwa1Dq60LKb0aYAxrr7o2yqS1f3WtHVh1al2L5RwvWFDt7b269MfOVCaNdYLpMSwwYlKq0rv4H9uaqdhHm2C9/KVQ= X-Gm-Message-State: AOJu0YyW4t43GzUsbbJDo2WVB/E8/YY0xsOzR1fXL8kDR05MngZh88Xt jtgIZYRi6M+cpkG3hzMjnPNHSDeUreuXOs6op3uKt3q24+NiDhzdXcmu3Y6X/v0mbZRNYO7sjkB q2TvfenoKCw== X-Google-Smtp-Source: AGHT+IF67RE9Tjmuj/kq/k/X6dA78e699FHOj3MI1LHmpXg9uh50LZwtSgAXRWUPUOYrgrIfYkhy+wDlS5BIsw== X-Received: from joychakr.c.googlers.com ([fda3:e722:ac3:cc00:4f:4b78:c0a8:6ea]) (user=joychakr job=sendgmr) by 2002:a25:9004:0:b0:de5:a44c:25af with SMTP id 3f1490d57ef6-dfadec0b255mr68711276.5.1717610418012; Wed, 05 Jun 2024 11:00:18 -0700 (PDT) Date: Wed, 5 Jun 2024 17:59:48 +0000 In-Reply-To: <20240605175953.2613260-1-joychakr@google.com> Mime-Version: 1.0 References: <20240605175953.2613260-1-joychakr@google.com> X-Mailer: git-send-email 2.45.1.467.gbab1589fc0-goog Message-ID: <20240605175953.2613260-5-joychakr@google.com> Subject: [PATCH v1 04/17] iio: pressure: bmp280: Change nvmem reg_read/write return type From: Joy Chakraborty To: Srinivas Kandagatla , Greg Kroah-Hartman , AngeloGioacchino Del Regno , Lars-Peter Clausen , Sakari Ailus , Bingbu Cao , Zhihao Cheng , Jerome Brunet , Martin Blumenstingl 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240605_110022_184972_BD9A3877 X-CRM114-Status: UNSURE ( 9.75 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org Change nvmem read/write function definition return type to ssize_t. Signed-off-by: Joy Chakraborty --- drivers/iio/pressure/bmp280-core.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c index 09f53d987c7d..8d5aeabfa297 100644 --- a/drivers/iio/pressure/bmp280-core.c +++ b/drivers/iio/pressure/bmp280-core.c @@ -1465,10 +1465,11 @@ static const int bmp580_odr_table[][2] = { static const int bmp580_nvmem_addrs[] = { 0x20, 0x21, 0x22 }; -static int bmp580_nvmem_read(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t bmp580_nvmem_read(void *priv, unsigned int offset, void *val, + size_t bytes) { struct bmp280_data *data = priv; + size_t bytes_read = bytes; u16 *dst = val; int ret, addr; @@ -1518,13 +1519,14 @@ static int bmp580_nvmem_read(void *priv, unsigned int offset, void *val, mutex_unlock(&data->lock); pm_runtime_mark_last_busy(data->dev); pm_runtime_put_autosuspend(data->dev); - return ret; + return ret < 0 ? ret : bytes_read; } -static int bmp580_nvmem_write(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t bmp580_nvmem_write(void *priv, unsigned int offset, void *val, + size_t bytes) { struct bmp280_data *data = priv; + size_t bytes_written = bytes; u16 *buf = val; int ret, addr; @@ -1582,7 +1584,7 @@ static int bmp580_nvmem_write(void *priv, unsigned int offset, void *val, mutex_unlock(&data->lock); pm_runtime_mark_last_busy(data->dev); pm_runtime_put_autosuspend(data->dev); - return ret; + return ret < 0 ? ret : bytes_written; } static int bmp580_preinit(struct bmp280_data *data)