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| author | Jia-Ju Bai <baijiaju1990@gmail.com> | 2018-07-30 16:59:03 +0300 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2018-08-27 23:51:54 +0300 |
| commit | c6b5eb8dd33480104683d838da10c7ec77d32e8a (patch) | |
| tree | 6de9fdf1150320727f9e6b0125f2b19fd0b6c26b /drivers/rtc | |
| parent | 5b394b2ddf0347bef56e50c69a58773c94343ff3 (diff) | |
| download | linux-c6b5eb8dd33480104683d838da10c7ec77d32e8a.tar.xz | |
rtc: rtc-mrst: Replace mdelay() with msleep() in mrst_read_time()
mrst_read_time() is never called in atomic context.
It calls mdelay() to busily wait, which is not necessary.
mdelay() can be replaced with msleep().
This is found by a static analysis tool named DCNS written by myself.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-mrst.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c index 1925aaf09093..bf2d7af03d07 100644 --- a/drivers/rtc/rtc-mrst.c +++ b/drivers/rtc/rtc-mrst.c @@ -90,7 +90,7 @@ static int mrst_read_time(struct device *dev, struct rtc_time *time) unsigned long flags; if (vrtc_is_updating()) - mdelay(20); + msleep(20); spin_lock_irqsave(&rtc_lock, flags); time->tm_sec = vrtc_cmos_read(RTC_SECONDS); |