| Message ID | 21524c51-7b58-19c2-dd13-eca592824185@cybernetics.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/block/bsg.c b/block/bsg.c index 66602c4..3da540f 100644 --- a/block/bsg.c +++ b/block/bsg.c @@ -267,8 +267,6 @@ bsg_map_hdr(struct request_queue *q, str } else if (hdr->din_xfer_len) { ret = blk_rq_map_user(q, rq, NULL, uptr64(hdr->din_xferp), hdr->din_xfer_len, GFP_KERNEL); - } else { - ret = blk_rq_map_user(q, rq, NULL, NULL, 0, GFP_KERNEL); } if (ret)
Fix a regression introduced in Linux kernel 4.17 where sending a SCSI command that does not transfer data (such as TEST UNIT READY) via /dev/bsg/* results in EINVAL. Fixes: 17cb960f29c2 ("bsg: split handling of SCSI CDBs vs transport requeues") Cc: <stable@vger.kernel.org> # 4.17+ Signed-off-by: Tony Battersby <tonyb@cybernetics.com> ---