ide: BUG() on unknown requests

Unsupported requests should be never handed down to device drivers
and the best thing we can do upon discovering such request inside
driver's ->do_request method is to just BUG().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 2 insertions, 6 deletions

diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index dcd72445b0cd..0b7645b13df1 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -785,12 +785,8 @@ static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq,
                 /* right now this can only be a reset... */
                 uptodate = 1;
                 goto out_end;
-        } else {
-                blk_dump_rq_flags(rq, DRV_NAME " bad flags");
-                if (rq->errors == 0)
-                        rq->errors = -EIO;
-                goto out_end;
-        }
+        } else
+                BUG();
 
         /* prepare sense request for this command */
         ide_prep_sense(drive, rq);