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[PATCH] sleep: Fix oops in enter_state

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If ACPI sleep is not configured, but someone still wants to run swsusp,
he'd get oops in enter_state.  This is regression since 2.6.14 and this
fixes it.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Pavel Machek 2005-11-08 21:34:30 -08:00 committed by Linus Torvalds
parent 08de1f0461
commit 969e9afd48
1 changed files with 1 additions and 1 deletions
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2
kernel/power/main.c
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@ -167,7 +167,7 @@ static int enter_state(suspend_state_t state)
{ {
int error; int error;
if (pm_ops->valid && !pm_ops->valid(state)) if (pm_ops && pm_ops->valid && !pm_ops->valid(state))
return -ENODEV; return -ENODEV;
if (down_trylock(&pm_sem)) if (down_trylock(&pm_sem))
return -EBUSY; return -EBUSY;