drivers/rtc/rtc-stmp3xxx.c: check the return value from stmp_reset_block()
stmp_reset_block() may fail, so let's check its return value and
propagate it in the case of error.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/rtc/rtc-stmp3xxx.c b/drivers/rtc/rtc-stmp3xxx.c
index 90a3e86..767fee2 100644
--- a/drivers/rtc/rtc-stmp3xxx.c
+++ b/drivers/rtc/rtc-stmp3xxx.c
@@ -261,7 +261,12 @@
platform_set_drvdata(pdev, rtc_data);
- stmp_reset_block(rtc_data->io);
+ err = stmp_reset_block(rtc_data->io);
+ if (err) {
+ dev_err(&pdev->dev, "stmp_reset_block failed: %d\n", err);
+ return err;
+ }
+
writel(STMP3XXX_RTC_PERSISTENT0_ALARM_EN |
STMP3XXX_RTC_PERSISTENT0_ALARM_WAKE_EN |
STMP3XXX_RTC_PERSISTENT0_ALARM_WAKE,