ipc/shm.c: remove the superfluous break

Remove the superfuous break, as there is a 'return' before it.

Signed-off-by: Liao Pingfang <[email protected]>
Signed-off-by: Yi Wang <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Reviewed-by: Andrew Morton <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>

Author: Liao Pingfang

ipc/shm.c

@@ -1380,7 +1380,6 @@ static long compat_ksys_shmctl(int shmid, int cmd, void __user *uptr, int versio
 	case SHM_LOCK:
 	case SHM_UNLOCK:
 		return shmctl_do_lock(ns, shmid, cmd);
-		break;
 	default:
 		return -EINVAL;
 	}