[PATCH linux-next] rtc: ds1307: use sysfs_emit() to instead of scnprintf()

[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/rtc/rtc-ds1307.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index 7c2276cf5514..def9b7f9d957 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -1219,8 +1219,7 @@ static ssize_t frequency_test_show(struct device *dev,

 	regmap_read(ds1307->regmap, M41TXX_REG_CONTROL, &ctrl_reg);

-	return scnprintf(buf, PAGE_SIZE, (ctrl_reg & M41TXX_BIT_FT) ? "on\n" :
-			"off\n");
+	return sysfs_emit(buf, (ctrl_reg & M41TXX_BIT_FT) ? "on\n" : "off\n");
 }

 static DEVICE_ATTR_RW(frequency_test);
-- 
2.25.1