luck/tmp_suning_uos_patched
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/apm

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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/apm:
  apm-emulation: use wait_event_freezable() instead of freezer_[do_not_]count()
This commit is contained in:
Linus Torvalds 2011-10-25 12:03:58 +02:00
commit 73692d9bb5
1 changed files with 6 additions and 10 deletions
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16
drivers/char/apm-emulation.c
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@ -300,17 +300,13 @@ apm_ioctl(struct file *filp, u_int cmd, u_long arg)
/*
* Wait for the suspend/resume to complete. If there
* are pending acknowledges, we wait here for them.
* wait_event_freezable() is interruptible and pending
* signal can cause busy looping. We aren't doing
* anything critical, chill a bit on each iteration.
*/
freezer_do_not_count();
wait_event(apm_suspend_waitqueue,
as->suspend_state == SUSPEND_DONE);
/*
* Since we are waiting until the suspend is done, the
* try_to_freeze() in freezer_count() will not trigger
*/
freezer_count();
while (wait_event_freezable(apm_suspend_waitqueue,
as->suspend_state == SUSPEND_DONE))
msleep(10);
break;
case SUSPEND_ACKTO:
as->suspend_result = -ETIMEDOUT;