slab: convert cpu notifier to return encapsulate errno value

By the previous modification, the cpu notifier can return encapsulate
errno value.  This converts the cpu notifiers for slab.

Signed-off-by: Akinobu Mita <[email protected]>
Cc: Christoph Lameter <[email protected]>
Acked-by: Pekka Enberg <[email protected]>
Cc: Matt Mackall <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/mm/slab.c b/mm/slab.c
index 8270ba3d19860876b1ac349625ab7d34216b426d..6437d89a8401fe1ab46ec7c365cbc63ab6567e8e 100644 (file)
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1321,7 +1321,7 @@ static int __cpuinit cpuup_callback(struct notifier_block *nfb,
                mutex_unlock(&cache_chain_mutex);
                break;
        }
-       return err ? NOTIFY_BAD : NOTIFY_OK;
+       return notifier_from_errno(err);
 }
 
 static struct notifier_block __cpuinitdata cpucache_notifier = {