[SCSI] Return ENODATA on medium error

When a medium error is detected the SCSI stack should return
ENODATA to the upper layers.

[jejb: fix whitespace error]
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/block/blk-core.c b/block/blk-core.c
index 68ce4d53a528..c04505358342 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -2321,6 +2321,9 @@ bool blk_update_request(struct request *req, int error, unsigned int nr_bytes)
                 case -ENOSPC:
                         error_type = "critical space allocation";
                         break;
+                case -ENODATA:
+                        error_type = "critical medium";
+                        break;
                 case -EIO:
                 default:
                         error_type = "I/O";