[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, 5 insertions, 0 deletions

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 49020d52d685..36b5c898db9d 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -727,6 +727,7 @@ EXPORT_SYMBOL(scsi_release_buffers);
  * -EREMOTEIO   permanent target failure, do not retry
  * -EBADE       permanent nexus failure, retry on other path
  * -ENOSPC      No write space available
+ * -ENODATA     Medium error
  * -EIO         unspecified I/O error
  */
 static int __scsi_error_from_host_byte(struct scsi_cmnd *cmd, int result)
@@ -749,6 +750,10 @@ static int __scsi_error_from_host_byte(struct scsi_cmnd *cmd, int result)
                 set_host_byte(cmd, DID_OK);
                 error = -ENOSPC;
                 break;
+        case DID_MEDIUM_ERROR:
+                set_host_byte(cmd, DID_OK);
+                error = -ENODATA;
+                break;
         default:
                 error = -EIO;
                 break;