block: make blk_abort_queue() ignore non-request based devices
There's nothing to do for those devices, since the timeout handling is
based on requests.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/block/blk-timeout.c b/block/blk-timeout.c
index bbbdc4b..8f570c4 100644
--- a/block/blk-timeout.c
+++ b/block/blk-timeout.c
@@ -211,6 +211,12 @@
struct request *rq, *tmp;
LIST_HEAD(list);
+ /*
+ * Not a request based block device, nothing to abort
+ */
+ if (!q->request_fn)
+ return;
+
spin_lock_irqsave(q->queue_lock, flags);
elv_abort_queue(q);