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authorJesper Juhl <jj@chaosbits.net>2011-07-25 17:13:34 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-25 20:57:17 -0700
commit8f6b0dd369868559b384a66aa17512ae5aae2d9b (patch)
treeb98bcc40d158d96fe30af93e5bdede28fbeac77d /drivers/rtc/rtc-twl.c
parent9a9a54ad7aa2c7420c96c6fd33538f55d81775cb (diff)
drivers/rtc/rtc-twl.c: check return value of twl_rtc_write_u8() in twl_rtc_set_time()
We forget to save the return value of the call to twl_rtc_write_u8(save_control, REG_RTC_CTRL_REG); in 'ret', making the test of 'ret < 0' dead code since 'ret' then couldn't possibly have changed since the last test just a few lines above. It also makes us not detect failures from that specific twl_rtc_write_u8() call. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Rusev <source@mvista.com> Cc: "George G. Davis" <gdavis@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rtc/rtc-twl.c')
-rw-r--r--drivers/rtc/rtc-twl.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-twl.c b/drivers/rtc/rtc-twl.c
index f9a2799c44d..9a81f778d6b 100644
--- a/drivers/rtc/rtc-twl.c
+++ b/drivers/rtc/rtc-twl.c
@@ -275,7 +275,7 @@ static int twl_rtc_set_time(struct device *dev, struct rtc_time *tm)
goto out;
save_control &= ~BIT_RTC_CTRL_REG_STOP_RTC_M;
- twl_rtc_write_u8(save_control, REG_RTC_CTRL_REG);
+ ret = twl_rtc_write_u8(save_control, REG_RTC_CTRL_REG);
if (ret < 0)
goto out;