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authorAlexandre Belloni <alexandre.belloni@bootlin.com>2020-10-15 22:11:33 +0300
committerAlexandre Belloni <alexandre.belloni@bootlin.com>2020-10-19 23:48:55 +0300
commit8b34134907e7d70b8b51fa56ecd4f8c50c46692c (patch)
tree57a64302d18919402b7afad86f2c58db059738c8 /drivers/rtc/rtc-r9701.c
parent2a8f3380c9e50a36b99a92febfd78f7c7afd29b0 (diff)
downloadlinux-8b34134907e7d70b8b51fa56ecd4f8c50c46692c.tar.xz
rtc: r9701: stop setting RWKCNT
tm_wday is never checked for validity and it is not read back in r9701_get_datetime. Avoid setting it to stop tripping static checkers: drivers/rtc/rtc-r9701.c:109 r9701_set_datetime() error: undefined (user controlled) shift '1 << dt->tm_wday' Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20201015191135.471249-4-alexandre.belloni@bootlin.com
Diffstat (limited to 'drivers/rtc/rtc-r9701.c')
-rw-r--r--drivers/rtc/rtc-r9701.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-r9701.c b/drivers/rtc/rtc-r9701.c
index 4b688e9c4192..183c5a0fe78c 100644
--- a/drivers/rtc/rtc-r9701.c
+++ b/drivers/rtc/rtc-r9701.c
@@ -100,7 +100,6 @@ static int r9701_set_datetime(struct device *dev, struct rtc_time *dt)
ret = ret ? ret : write_reg(dev, RDAYCNT, bin2bcd(dt->tm_mday));
ret = ret ? ret : write_reg(dev, RMONCNT, bin2bcd(dt->tm_mon + 1));
ret = ret ? ret : write_reg(dev, RYRCNT, bin2bcd(dt->tm_year - 100));
- ret = ret ? ret : write_reg(dev, RWKCNT, 1 << dt->tm_wday);
return ret;
}