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Tue, 03 Aug 2021 05:06:55 -0700 (PDT) From: William Breathitt Gray To: jic23@kernel.org Cc: linux-stm32@st-md-mailman.stormreply.com, kernel@pengutronix.de, a.fatoum@pengutronix.de, kamel.bouhara@bootlin.com, gwendal@chromium.org, alexandre.belloni@bootlin.com, david@lechnology.com, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, syednwaris@gmail.com, patrick.havelange@essensium.com, fabrice.gasnier@st.com, mcoquelin.stm32@gmail.com, alexandre.torgue@st.com, o.rempel@pengutronix.de, jarkko.nikula@linux.intel.com, William Breathitt Gray , Fabrice Gasnier Subject: [PATCH v14 03/17] counter: Standardize to ERANGE for limit exceeded errors Date: Tue, 3 Aug 2021 21:06:13 +0900 Message-Id: X-Mailer: git-send-email 2.32.0 In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210803_050658_042760_DB3A5EAA X-CRM114-Status: GOOD ( 15.78 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org ERANGE is a semantically better error code to return when an argument value falls outside the supported limit range of a device. Cc: Jarkko Nikula Cc: Oleksij Rempel Cc: Maxime Coquelin Cc: Alexandre Torgue Acked-by: Syed Nayyar Waris Reviewed-by: David Lechner Reviewed-by: Fabrice Gasnier Signed-off-by: William Breathitt Gray --- drivers/counter/104-quad-8.c | 6 +++--- drivers/counter/intel-qep.c | 2 +- drivers/counter/interrupt-cnt.c | 3 +++ drivers/counter/stm32-lptimer-cnt.c | 2 +- 4 files changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/counter/104-quad-8.c b/drivers/counter/104-quad-8.c index b358b2b2b883..d54efdb8d393 100644 --- a/drivers/counter/104-quad-8.c +++ b/drivers/counter/104-quad-8.c @@ -154,7 +154,7 @@ static int quad8_count_write(struct counter_device *counter, /* Only 24-bit values are supported */ if (val > 0xFFFFFF) - return -EINVAL; + return -ERANGE; mutex_lock(&priv->lock); @@ -669,7 +669,7 @@ static ssize_t quad8_count_preset_write(struct counter_device *counter, /* Only 24-bit values are supported */ if (preset > 0xFFFFFF) - return -EINVAL; + return -ERANGE; mutex_lock(&priv->lock); @@ -714,7 +714,7 @@ static ssize_t quad8_count_ceiling_write(struct counter_device *counter, /* Only 24-bit values are supported */ if (ceiling > 0xFFFFFF) - return -EINVAL; + return -ERANGE; mutex_lock(&priv->lock); diff --git a/drivers/counter/intel-qep.c b/drivers/counter/intel-qep.c index 1a9512e28519..204f94577666 100644 --- a/drivers/counter/intel-qep.c +++ b/drivers/counter/intel-qep.c @@ -319,7 +319,7 @@ static ssize_t spike_filter_ns_write(struct counter_device *counter, } if (length > INTEL_QEPFLT_MAX_COUNT(length)) - return -EINVAL; + return -ERANGE; mutex_lock(&qep->lock); if (qep->enabled) { diff --git a/drivers/counter/interrupt-cnt.c b/drivers/counter/interrupt-cnt.c index 5df7cd13d4c7..66cac4900327 100644 --- a/drivers/counter/interrupt-cnt.c +++ b/drivers/counter/interrupt-cnt.c @@ -107,6 +107,9 @@ static int interrupt_cnt_write(struct counter_device *counter, { struct interrupt_cnt_priv *priv = counter->priv; + if (val != (typeof(priv->count.counter))val) + return -ERANGE; + atomic_set(&priv->count, val); return 0; diff --git a/drivers/counter/stm32-lptimer-cnt.c b/drivers/counter/stm32-lptimer-cnt.c index 78f383b77bd2..49aeb9e393f3 100644 --- a/drivers/counter/stm32-lptimer-cnt.c +++ b/drivers/counter/stm32-lptimer-cnt.c @@ -283,7 +283,7 @@ static ssize_t stm32_lptim_cnt_ceiling_write(struct counter_device *counter, return ret; if (ceiling > STM32_LPTIM_MAX_ARR) - return -EINVAL; + return -ERANGE; priv->ceiling = ceiling;