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From: Xiaotian Feng on 13 Aug 2010 06:50
kernel needs to kobject_put on dev->kobj if elv_register_queue fails.

Signed-off-by: Xiaotian Feng <dfeng(a)redhat.com>
Cc: Jens Axboe <axboe(a)kernel.dk>
Cc: "Martin K. Petersen" <martin.petersen(a)oracle.com>
Cc: Stephen Hemminger <shemminger(a)vyatta.com>
Cc: Nikanth Karthikesan <knikanth(a)suse.de>
Cc: David Teigland <teigland(a)redhat.com>
---
block/blk-sysfs.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 001ab18..0749b89 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -511,6 +511,7 @@ int blk_register_queue(struct gendisk *disk)
kobject_uevent(&q->kobj, KOBJ_REMOVE);
kobject_del(&q->kobj);
blk_trace_remove_sysfs(disk_to_dev(disk));
+ kobject_put(&dev->kobj);
return ret;
}

--
1.7.2.1

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