drivers/rtc/rtc-stmp3xxx.c: check the return value from stmp_reset_block()

[firefly-linux-kernel-4.4.55.git] / drivers / rtc / rtc-stmp3xxx.c

diff --git a/drivers/rtc/rtc-stmp3xxx.c b/drivers/rtc/rtc-stmp3xxx.c
index 90a3e864b8fe0c7d1a2efcf7a7551f1c10683610..767fee2ab340efb2d5ce647637053028c38b4aec 100644 (file)
--- a/drivers/rtc/rtc-stmp3xxx.c
+++ b/drivers/rtc/rtc-stmp3xxx.c
@@ -261,7 +261,12 @@ static int stmp3xxx_rtc_probe(struct platform_device *pdev)
 
        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,