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authorJiri Kosina <jkosina@suse.cz>2014-11-20 14:42:02 +0100
committerJiri Kosina <jkosina@suse.cz>2014-11-20 14:42:02 +0100
commita02001086bbfb4da35d1228bebc2f1b442db455f (patch)
tree62ab47936cef06fd08657ca5b6cd1df98c19be57 /drivers/rtc/class.c
parenteff264efeeb0898408e8c9df72d8a32621035bed (diff)
parentfc14f9c1272f62c3e8d01300f52467c0d9af50f9 (diff)
Merge Linus' tree to be be to apply submitted patches to newer code than
current trivial.git base
Diffstat (limited to 'drivers/rtc/class.c')
-rw-r--r--drivers/rtc/class.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c
index 589351ef75d..38e26be705b 100644
--- a/drivers/rtc/class.c
+++ b/drivers/rtc/class.c
@@ -53,6 +53,7 @@ static int rtc_suspend(struct device *dev)
struct rtc_device *rtc = to_rtc_device(dev);
struct rtc_time tm;
struct timespec delta, delta_delta;
+ int err;
if (has_persistent_clock())
return 0;
@@ -61,7 +62,12 @@ static int rtc_suspend(struct device *dev)
return 0;
/* snapshot the current RTC and system time at suspend*/
- rtc_read_time(rtc, &tm);
+ err = rtc_read_time(rtc, &tm);
+ if (err < 0) {
+ pr_debug("%s: fail to read rtc time\n", dev_name(&rtc->dev));
+ return 0;
+ }
+
getnstimeofday(&old_system);
rtc_tm_to_time(&tm, &old_rtc.tv_sec);
@@ -94,6 +100,7 @@ static int rtc_resume(struct device *dev)
struct rtc_time tm;
struct timespec new_system, new_rtc;
struct timespec sleep_time;
+ int err;
if (has_persistent_clock())
return 0;
@@ -104,7 +111,12 @@ static int rtc_resume(struct device *dev)
/* snapshot the current rtc and system time at resume */
getnstimeofday(&new_system);
- rtc_read_time(rtc, &tm);
+ err = rtc_read_time(rtc, &tm);
+ if (err < 0) {
+ pr_debug("%s: fail to read rtc time\n", dev_name(&rtc->dev));
+ return 0;
+ }
+
if (rtc_valid_tm(&tm) != 0) {
pr_debug("%s: bogus resume time\n", dev_name(&rtc->dev));
return 0;