From: Shenghui Wang <shhuiw@foxmail.com>
Date: Mon, 1 Apr 2019 13:40:36 +0000 (+0800)
Subject: block: use blk_free_flush_queue() to free hctx->fq in blk_mq_init_hctx
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b9a1ff504b9492ad6beb7d5606e0e3365d4d8499;p=linux.git

block: use blk_free_flush_queue() to free hctx->fq in blk_mq_init_hctx

kfree() can leak the hctx->fq->flush_rq field.

Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Shenghui Wang <shhuiw@foxmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 3ff3d7b499697..f3b0d33bdf882 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -2332,7 +2332,7 @@ static int blk_mq_init_hctx(struct request_queue *q,
 	return 0;
 
  free_fq:
-	kfree(hctx->fq);
+	blk_free_flush_queue(hctx->fq);
  exit_hctx:
 	if (set->ops->exit_hctx)
 		set->ops->exit_hctx(hctx, hctx_idx);