[PATCH 5.11 219/775] bsg: free the request before return error code

From: Greg Kroah-Hartman
Date: Mon Mar 01 2021 - 23:13:11 EST


From: Pan Bian <bianpan2016@xxxxxxx>

[ 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@xxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
block/bsg.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/block/bsg.c b/block/bsg.c
index d7bae94b64d95..3d78e843a83f6 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)
--
2.27.0