[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>

1 files changed, 1 insertions, 1 deletions

diff --git a/kernel/power/main.c b/kernel/power/main.c
index 18d7d693fbba..6ee2cad530e8 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -167,7 +167,7 @@ static int enter_state(suspend_state_t state)
 {
         int error;
 
-        if (pm_ops->valid && !pm_ops->valid(state))
+        if (pm_ops && pm_ops->valid && !pm_ops->valid(state))
                 return -ENODEV;
         if (down_trylock(&pm_sem))
                 return -EBUSY;