[PATCH v10 19/33] counter: Standardize to ERANGE for limit exceeded errors
From: William Breathitt Gray <hidden>
Date: 2021-03-19 11:03:25
Also in:
linux-arm-kernel, lkml
Subsystem:
acces 104-quad-8 driver, counter subsystem, interrupt counter driver, stm32 timer/lptimer drivers, the rest · Maintainers:
William Breathitt Gray, Oleksij Rempel, Fabrice Gasnier, Linus Torvalds
ERANGE is a semantically better error code to return when an argument value falls outside the supported limit range of a device. Cc: Syed Nayyar Waris <redacted> Cc: Oleksij Rempel <o.rempel@pengutronix.de> Cc: Fabrice Gasnier <redacted> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Alexandre Torgue <redacted> Reviewed-by: David Lechner <david@lechnology.com> Signed-off-by: William Breathitt Gray <redacted> --- drivers/counter/104-quad-8.c | 6 +++--- drivers/counter/interrupt-cnt.c | 3 +++ drivers/counter/stm32-lptimer-cnt.c | 2 +- 3 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/counter/104-quad-8.c b/drivers/counter/104-quad-8.c
index b7d6c1c43655..0409b1771fd9 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/interrupt-cnt.c b/drivers/counter/interrupt-cnt.c
index 0e07607f2cd3..f27dea317965 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;
--
2.30.2