scsi: ILLEGAL REQUEST + ASC==27 => target failure

ASC 0x27 is "WRITE PROTECTED". This error code is returned e.g.  by
Fujitsu ETERNUS systems under certain conditions for WRITE SAME 16
commands with UNMAP bit set. It should not be treated as a path
error. In general, it makes sense to assume that being write protected
is a target rather than a path property.

Signed-off-by: Martin Wilck <mwilck@suse.com>
Acked-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 38942050b2656bd104abb465a79b29c4e7039d43..dab876c6547392c0ccb75047c4cb767640407834 100644 (file)
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -580,7 +580,8 @@ int scsi_check_sense(struct scsi_cmnd *scmd)
                if (sshdr.asc == 0x20 || /* Invalid command operation code */
                    sshdr.asc == 0x21 || /* Logical block address out of range */
                    sshdr.asc == 0x24 || /* Invalid field in cdb */
-                   sshdr.asc == 0x26) { /* Parameter value invalid */
+                   sshdr.asc == 0x26 || /* Parameter value invalid */
+                   sshdr.asc == 0x27) { /* Write protected */
                        set_host_byte(scmd, DID_TARGET_FAILURE);
                }
                return SUCCESS;