When mc146818_avoid_UIP() fails to return a valid value, this is because UIP didn't clear in the timeout period. Adjust the return code in this case to -ETIMEDOUT. Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx> --- drivers/rtc/rtc-cmos.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c index 228fb2d11c70..b39890a5531e 100644 --- a/drivers/rtc/rtc-cmos.c +++ b/drivers/rtc/rtc-cmos.c @@ -557,7 +557,7 @@ static int cmos_set_alarm(struct device *dev, struct rtc_wkalrm *t) * Use mc146818_avoid_UIP() to avoid this. */ if (!mc146818_avoid_UIP(cmos_set_alarm_callback, &p)) - return -EIO; + return -ETIMEDOUT; cmos->alarm_expires = rtc_tm_to_time64(&t->time); -- 2.34.1