[PATCH] sleep: Fix oops in enter_state
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>
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@ -167,7 +167,7 @@ static int enter_state(suspend_state_t state)
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{
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int error;
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if (pm_ops->valid && !pm_ops->valid(state))
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if (pm_ops && pm_ops->valid && !pm_ops->valid(state))
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return -ENODEV;
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if (down_trylock(&pm_sem))
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return -EBUSY;
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