From d46fe2cb2dce7f5038473b5859e03f5e16b7428e Mon Sep 17 00:00:00 2001 From: Martin Wilck Date: Mon, 23 Sep 2019 14:02:02 +0000 Subject: [PATCH] block: drop device references in bsg_queue_rq() Make sure that bsg_queue_rq() calls put_device() if an error is encountered after get_device() was successful. Fixes: cd2f076f1d7a ("bsg: convert to use blk-mq") Signed-off-by: Martin Wilck Signed-off-by: Jens Axboe --- block/bsg-lib.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/block/bsg-lib.c b/block/bsg-lib.c index 785dd58..347dda1 100644 --- a/block/bsg-lib.c +++ b/block/bsg-lib.c @@ -266,6 +266,7 @@ static blk_status_t bsg_queue_rq(struct blk_mq_hw_ctx *hctx, struct request *req = bd->rq; struct bsg_set *bset = container_of(q->tag_set, struct bsg_set, tag_set); + int sts = BLK_STS_IOERR; int ret; blk_mq_start_request(req); @@ -274,14 +275,15 @@ static blk_status_t bsg_queue_rq(struct blk_mq_hw_ctx *hctx, return BLK_STS_IOERR; if (!bsg_prepare_job(dev, req)) - return BLK_STS_IOERR; + goto out; ret = bset->job_fn(blk_mq_rq_to_pdu(req)); - if (ret) - return BLK_STS_IOERR; + if (!ret) + sts = BLK_STS_OK; +out: put_device(dev); - return BLK_STS_OK; + return sts; } /* called right after the request is allocated for the request_queue */ -- 2.7.4