bsg: free the request before return error code

[ Upstream commit 0f7b4bc6bb1e57c48ef14f1818df947c1612b206 ]

Free the request rq before returning error code.

Fixes: 972248e9111e ("scsi: bsg-lib: handle bidi requests without block layer help")
Signed-off-by: Pan Bian <bianpan2016@163.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/block/bsg.c b/block/bsg.c
index d7bae94..3d78e84 100644 (file)
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -157,8 +157,10 @@ static int bsg_sg_io(struct request_queue *q, fmode_t mode, void __user *uarg)
                return PTR_ERR(rq);
 
        ret = q->bsg_dev.ops->fill_hdr(rq, &hdr, mode);
-       if (ret)
+       if (ret) {
+               blk_put_request(rq);
                return ret;
+       }
 
        rq->timeout = msecs_to_jiffies(hdr.timeout);
        if (!rq->timeout)