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-rw-r--r--block/elevator.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/block/elevator.c b/block/elevator.c
index 0abce473d60..923a9139106 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -242,9 +242,11 @@ int elevator_init(struct request_queue *q, char *name)
{
struct elevator_type *e = NULL;
struct elevator_queue *eq;
- int ret = 0;
void *data;
+ if (unlikely(q->elevator))
+ return 0;
+
INIT_LIST_HEAD(&q->queue_head);
q->last_merge = NULL;
q->end_sector = 0;
@@ -284,7 +286,7 @@ int elevator_init(struct request_queue *q, char *name)
}
elevator_attach(q, eq, data);
- return ret;
+ return 0;
}
EXPORT_SYMBOL(elevator_init);