[PATCH] scsi: remove superfluous NULL pointer check from scsi_kill_request()

[Bartlomiej Zolnierkiewicz]

From: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
Subject: [PATCH] scsi: remove superfluous NULL pointer check from scsi_kill_request()

>From Dan's list:

drivers/scsi/scsi_lib.c +1365 scsi_kill_request(9) warning: variable derefenced in initializer 'cmd'
drivers/scsi/scsi_lib.c +1365 scsi_kill_request(9) warning: variable derefenced before check 'cmd'

We dereference cmd (and possible OOPS if cmd == NULL) before starting
the request so just remove the superfluous debugging code altogether.

Reported-by: Dan Carpenter <error27@xxxxxxxxx>
Cc: corbet@xxxxxxx
Cc: eteo@xxxxxxxxxx
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
---
 drivers/scsi/scsi_lib.c |    6 ------
 1 file changed, 6 deletions(-)

Index: b/drivers/scsi/scsi_lib.c
===================================================================
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1365,12 +1365,6 @@ static void scsi_kill_request(struct req
 
 	blk_start_request(req);
 
-	if (unlikely(cmd == NULL)) {
-		printk(KERN_CRIT "impossible request in %s.\n",
-				 __func__);
-		BUG();
-	}
-
 	scsi_init_cmd_errh(cmd);
 	cmd->result = DID_NO_CONNECT << 16;
 	atomic_inc(&cmd->device->iorequest_cnt);
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/