[PATCH] counter: replace snprintf in show functions with sysfs_emit

From: Qing Wang
Date: Tue Oct 12 2021 - 23:27:13 EST


coccicheck complains about the use of snprintf() in sysfs show functions.

Fix the following coccicheck warning:
drivers/counter/stm32-lptimer-cnt.c:265:8-16: WARNING: use scnprintf or sprintf.
drivers/counter/stm32-lptimer-cnt.c:176:8-16: WARNING: use scnprintf or sprintf.

Use sysfs_emit instead of scnprintf or sprintf makes more sense.

Signed-off-by: Qing Wang <wangqing@xxxxxxxx>
---
drivers/counter/stm32-lptimer-cnt.c | 2 +-
drivers/counter/stm32-timer-cnt.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/counter/stm32-lptimer-cnt.c b/drivers/counter/stm32-lptimer-cnt.c
index c19d998..6f1113a 100644
--- a/drivers/counter/stm32-lptimer-cnt.c
+++ b/drivers/counter/stm32-lptimer-cnt.c
@@ -262,7 +262,7 @@ static ssize_t stm32_lptim_cnt_ceiling_read(struct counter_device *counter,
{
struct stm32_lptim_cnt *const priv = counter->priv;

- return snprintf(buf, PAGE_SIZE, "%u\n", priv->ceiling);
+ return sysfs_emit(buf, "%u\n", priv->ceiling);
}

static ssize_t stm32_lptim_cnt_ceiling_write(struct counter_device *counter,
diff --git a/drivers/counter/stm32-timer-cnt.c b/drivers/counter/stm32-timer-cnt.c
index 603b30a..e772586 100644
--- a/drivers/counter/stm32-timer-cnt.c
+++ b/drivers/counter/stm32-timer-cnt.c
@@ -173,7 +173,7 @@ static ssize_t stm32_count_ceiling_read(struct counter_device *counter,

regmap_read(priv->regmap, TIM_ARR, &arr);

- return snprintf(buf, PAGE_SIZE, "%u\n", arr);
+ return sysfs_emit(buf, "%u\n", arr);
}

static ssize_t stm32_count_ceiling_write(struct counter_device *counter,
--
2.7.4