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authorye xingchen <ye.xingchen@zte.com.cn>2022-12-05 11:34:45 +0800
committerAlexandre Belloni <alexandre.belloni@bootlin.com>2022-12-15 23:34:31 +0100
commit0feebdeb3acc0375cd817385d637d27a8a6dca97 (patch)
tree766651b55321869eb6496413706af21e44d8bd4c
parentbb0a1799bbc498053011729dcac0d9430e7d750a (diff)
downloadnios2-0feebdeb3acc0375cd817385d637d27a8a6dca97.tar.gz
rtc: ds1307: use sysfs_emit() to instead of scnprintf()
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@zte.com.cn> Link: https://lore.kernel.org/r/202212051134455911470@zte.com.cn Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
-rw-r--r--drivers/rtc/rtc-ds1307.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index 7c2276cf5514a..def9b7f9d9577 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);