BUG_ON() Conversion in md/dm-target.c

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

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

drivers/md/dm-target.c

diff --git a/drivers/md/dm-target.c b/drivers/md/dm-target.c
index aecd9e0..64fd8e7 100644
--- a/drivers/md/dm-target.c
+++ b/drivers/md/dm-target.c
@@ -78,8 +78,7 @@
 	if (--ti->use == 0)
 		module_put(ti->tt.module);
 
-	if (ti->use < 0)
-		BUG();
+	BUG_ON(ti->use < 0);
 	up_read(&_lock);
 
 	return;