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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2019-03-08 15:23:11 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-03-23 20:10:10 +0100 |
| commit | cd73824636cb3ae03a3f01e6ffb5aed6d8f57a67 (patch) | |
| tree | 2d73e682da388f064f8c4c4dae9d57e744649d63 /Documentation | |
| parent | 43bceddcd7e2aa182d8a04c37682e9b49948e925 (diff) | |
PM / wakeup: Rework wakeup source timer cancellation
commit 1fad17fb1bbcd73159c2b992668a6957ecc5af8a upstream.
If wakeup_source_add() is called right after wakeup_source_remove()
for the same wakeup source, timer_setup() may be called for a
potentially scheduled timer which is incorrect.
To avoid that, move the wakeup source timer cancellation from
wakeup_source_drop() to wakeup_source_remove().
Moreover, make wakeup_source_remove() clear the timer function after
canceling the timer to let wakeup_source_not_registered() treat
unregistered wakeup sources in the same way as the ones that have
never been registered.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: 4.4+ <stable@vger.kernel.org> # 4.4+
[ rjw: Subject, changelog, merged two patches together ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions