[BLOCK] elevator init fixes #2

In addition to the first patch, which is probably goodness, I found the
cause of my panic - applying this patch fixes it and now I am booting.
If the chosen_elevator[] is not found, fall back to noop.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jens Axboe <axboe@suse.de>

1 files changed, 3 insertions, 2 deletions

diff --git a/block/elevator.c b/block/elevator.c
index 23cfbe528be1..e58928e809ea 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -155,9 +155,10 @@ static void elevator_setup_default(void)
         /*
          * If the given scheduler is not available, fall back to no-op.
          */
-        if (!(e = elevator_find(chosen_elevator)))
+        if ((e = elevator_find(chosen_elevator)))
+                elevator_put(e);
+        else
                 strcpy(chosen_elevator, "noop");
-        elevator_put(e);
 }
 
 static int __init elevator_setup(char *str)