[PATCH 1/3] block/loop: don't hijack error number

[Shaohua Li]

If the bio returns -EOPNOTSUPP, we shouldn't hijack it and return -EIO

Signed-off-by: Shaohua Li <s...@fb.com>
---
 drivers/block/loop.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index ef83349..054dccc 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -464,7 +464,7 @@ static void lo_complete_rq(struct request *rq)
                zero_fill_bio(bio);
        }
 
-       blk_mq_end_request(rq, cmd->ret < 0 ? BLK_STS_IOERR : BLK_STS_OK);
+       blk_mq_end_request(rq, errno_to_blk_status(cmd->ret));
 }
 
 static void lo_rw_aio_complete(struct kiocb *iocb, long ret, long ret2)
@@ -1725,7 +1725,7 @@ static void loop_handle_cmd(struct loop_cmd *cmd)
  failed:
        /* complete non-aio request */
        if (!cmd->use_aio || ret) {
-               cmd->ret = ret ? -EIO : 0;
+               cmd->ret = ret;
                blk_mq_complete_request(cmd->rq);
        }
 }
-- 
2.9.5