From: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
Date: Mon, 27 Aug 2012 23:56:52 +0000 (-0300)
Subject: floppy: do put_disk on current dr if blk_init_queue fails
X-Git-Tag: v3.0.51~4
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2000afe4fb86c374650371f41eb287746790d9ff;p=karo-tx-linux.git

floppy: do put_disk on current dr if blk_init_queue fails

commit 238ab78469c6ab7845b43d5061cd3c92331b2452 upstream.

If blk_init_queue fails, we do not call put_disk on the current dr
(dr is decremented first in the error handling loop).

Reviewed-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 9955a53733b2..e07e3eded782 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -4198,6 +4198,7 @@ static int __init floppy_init(void)
 
 		disks[dr]->queue = blk_init_queue(do_fd_request, &floppy_lock);
 		if (!disks[dr]->queue) {
+			put_disk(disks[dr]);
 			err = -ENOMEM;
 			goto out_put_disk;
 		}