[SCSI] sd: Fix handling of NO_SENSE check condition
[linux-2.6.git] / drivers / scsi / sd.c
index 7c4d2e6..55e6ed4 100644 (file)
@@ -1054,7 +1054,6 @@ static int sd_done(struct scsi_cmnd *SCpnt)
                good_bytes = sd_completed_bytes(SCpnt);
                break;
        case RECOVERED_ERROR:
-       case NO_SENSE:
                /* Inform the user, but make sure that it's not treated
                 * as a hard error.
                 */
@@ -1063,6 +1062,15 @@ static int sd_done(struct scsi_cmnd *SCpnt)
                memset(SCpnt->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
                good_bytes = scsi_bufflen(SCpnt);
                break;
+       case NO_SENSE:
+               /* This indicates a false check condition, so ignore it.  An
+                * unknown amount of data was transferred so treat it as an
+                * error.
+                */
+               scsi_print_sense("sd", SCpnt);
+               SCpnt->result = 0;
+               memset(SCpnt->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
+               break;
        case ABORTED_COMMAND:
                if (sshdr.asc == 0x10) { /* DIF: Disk detected corruption */
                        scsi_print_result(SCpnt);