[PATCH] iio: trigger: stm32-timer: Convert to use sysfs_emit_at() API

[ye.xingchen]

From: ye xingchen <ye.xingchen@xxxxxxxxxx>

Follow the advice of the Documentation/filesystems/sysfs.rst and show()
should only use sysfs_emit() or sysfs_emit_at() when formatting the
value to be returned to user space.

Signed-off-by: ye xingchen <ye.xingchen@xxxxxxxxxx>
---
 drivers/iio/trigger/stm32-timer-trigger.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/iio/trigger/stm32-timer-trigger.c b/drivers/iio/trigger/stm32-timer-trigger.c
index 3643c4afae67..eadfb255f7b7 100644
--- a/drivers/iio/trigger/stm32-timer-trigger.c
+++ b/drivers/iio/trigger/stm32-timer-trigger.c
@@ -352,8 +352,7 @@ static ssize_t stm32_tt_show_master_mode_avail(struct device *dev,
 		master_mode_max = MASTER_MODE_MAX;

 	for (i = 0; i <= master_mode_max; i++)
-		len += scnprintf(buf + len, PAGE_SIZE - len,
-			"%s ", master_mode_table[i]);
+		len += sysfs_emit_at(buf, len, "%s ", master_mode_table[i]);

 	/* replace trailing space by newline */
 	buf[len - 1] = '\n';
-- 
2.25.1