BUG_ON() Conversion in block/elevator.c

this changes if() BUG(); constructs to BUG_ON() which is
cleaner, contains unlikely() and can better optimized away.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>

1 files changed, 1 insertions, 2 deletions

diff --git a/block/elevator.c b/block/elevator.c
index 5e558c4689a4..56c2ed06a9e2 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -728,8 +728,7 @@ void elv_unregister_queue(struct request_queue *q)
 int elv_register(struct elevator_type *e)
 {
         spin_lock_irq(&elv_list_lock);
-        if (elevator_find(e->elevator_name))
-                BUG();
+        BUG_ON(elevator_find(e->elevator_name));
         list_add_tail(&e->list, &elv_list);
         spin_unlock_irq(&elv_list_lock);