From c76541a932113faa5b3be65a3f0a3d4ebbc86aeb Mon Sep 17 00:00:00 2001 From: Keith Busch Date: Fri, 19 Dec 2014 17:54:13 -0700 Subject: blk-mq: Exit queue on alloc failure Fixes usage counter when a request could not be allocated. Signed-off-by: Keith Busch Signed-off-by: Jens Axboe --- block/blk-mq.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'block') diff --git a/block/blk-mq.c b/block/blk-mq.c index da1ab5641227..bfe0f1f9cfa0 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -258,8 +258,10 @@ struct request *blk_mq_alloc_request(struct request_queue *q, int rw, gfp_t gfp, ctx = alloc_data.ctx; } blk_mq_put_ctx(ctx); - if (!rq) + if (!rq) { + blk_mq_queue_exit(q); return ERR_PTR(-EWOULDBLOCK); + } return rq; } EXPORT_SYMBOL(blk_mq_alloc_request); -- cgit v1.2.3-59-g8ed1b