diff options
author | Xunlei Pang <pang.xunlei@linaro.org> | 2014-12-10 15:54:26 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-10 17:41:16 -0800 |
commit | 6528b889955d36caa06712789746cfbd0ecf3898 (patch) | |
tree | c17dacc3c12b081cc396b37738c09acf22fb4113 /include/xen/xenbus_dev.h | |
parent | c594d6787919692001ac7c16f08646a8ec36180a (diff) |
rtc: refine rtc_timer_do_work() to consider other set alarm failures
rtc_timer_do_work() only judges -ETIME failure of__rtc_set_alarm(), but
doesn't handle other failures like -EIO, -EBUSY, etc.
If there is a failure other than -ETIME, the next rtc_timer will stay in
the timerqueue. Then later rtc_timers will be enqueued directly because
they have a later expires time, so the alarm irq will never be programmed.
When such failures happen, this patch will retry __rtc_set_alarm(), if
still can't program the alarm time, it will remove current rtc_timer from
timerqueue and fetch next one, thus preventing it from affecting other rtc
timers.
Signed-off-by: Xunlei Pang <pang.xunlei@linaro.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Arnd Bergmann <arnd.bergmann@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/xen/xenbus_dev.h')
0 files changed, 0 insertions, 0 deletions