From: Dave Jones <davej@redhat.com>
Date: Mon, 12 Jun 2006 12:20:58 +0000 (+0200)
Subject: [PATCH] remove dead code from elevator switching
X-Git-Tag: v2.6.18-rc1~1081^2~14
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=acf421755593f7d7bd9352d57eda796c6eb4fa43;p=platform%2Fkernel%2Flinux-3.10.git

[PATCH] remove dead code from elevator switching

We already drop the refcount in elevator_exit(), and as
we're setting 'e' to NULL, we'll never take that branch anyway.
Finally, as 'e' is a local var that isn't referenced afterwards,
setting it to NULL is pointless.

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Jens Axboe <axboe@suse.de>
---

diff --git a/block/elevator.c b/block/elevator.c
index a0afdd3..d00b283 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -850,12 +850,9 @@ fail_register:
 	 * one again (along with re-adding the sysfs dir)
 	 */
 	elevator_exit(e);
-	e = NULL;
 	q->elevator = old_elevator;
 	elv_register_queue(q);
 	clear_bit(QUEUE_FLAG_ELVSWITCH, &q->queue_flags);
-	if (e)
-		kobject_put(&e->kobj);
 	return 0;
 }