blk-mq: free hctx->ctx_map when init failed

Avoid memory leak in the failure path.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

diff --git a/block/blk-mq.c b/block/blk-mq.c
index ee225cc312b86a38ad09c70097464a4b467b297c..5fbbb221d4997319ffd49cc277d3f4c14a5925c8 100644 (file)
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1289,6 +1289,7 @@ static int blk_mq_init_hw_queues(struct request_queue *q,
 
                blk_mq_unregister_cpu_notifier(&hctx->cpu_notifier);
                kfree(hctx->ctxs);
+               kfree(hctx->ctx_map);
        }
 
        return 1;