From ed0b50cd4407c001f1498952a714c386d360754e Mon Sep 17 00:00:00 2001
From: Pan Bian <bianpan2016@163.com>
Date: Tue, 19 Jan 2021 04:33:11 -0800
Subject: [PATCH] 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>
---
 block/bsg.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/block/bsg.c b/block/bsg.c
index 833c44b3d458e..0d012efef5274 100644
--- 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)