scsi: sg: remove bad blk_end_request_all() call

mainline inclusion
from mainline-4.20-rc1
commit abaf75dd610ccfe1d085cb17061ac8862aabd2ea
category: bugfix
bugzilla: 10016
CVE: NA

---------------------------

We just need to free the request here. Additionally, this is currently
wrong for a queue that's using MQ currently, it'll crash.

Cc: Doug Gilbert <dgilbert@interlog.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: NJens Axboe <axboe@kernel.dk>
Acked-by: NDouglas Gilbert <dgilbert@interlog.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Nzhengbin <zhengbin13@huawei.com>
Reviewed-by: NJason Yan <yanaijie@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

drivers/scsi/sg.c

@@ -822,7 +822,7 @@ sg_common_write(Sg_fd * sfp, Sg_request * srp,
 	if (atomic_read(&sdp->detaching)) {
 		if (srp->bio) {
 			scsi_req_free_cmd(scsi_req(srp->rq));
-			blk_end_request_all(srp->rq, BLK_STS_IOERR);
+			blk_put_request(srp->rq);
 			srp->rq = NULL;
 		}