linux-kernel - [PATCH 019/241] floppy: do put_disk on current dr if blk_init

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Message-Id: <1355407206-17100-20-git-send-email-herton.krzesinski@canonical.com>
Date:	Thu, 13 Dec 2012 11:56:24 -0200
From:	Herton Ronaldo Krzesinski <herton.krzesinski@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Jiri Kosina <jkosina@...e.cz>, Jens Axboe <axboe@...nel.dk>,
	Herton Ronaldo Krzesinski <herton.krzesinski@...onical.com>
Subject: [PATCH 019/241] floppy: do put_disk on current dr if blk_init_queue fails

3.5.7.2 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Herton Ronaldo Krzesinski <herton.krzesinski@...onical.com>

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@...adent.org.uk>
Signed-off-by: Jiri Kosina <jkosina@...e.cz>
Signed-off-by: Jens Axboe <axboe@...nel.dk>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@...onical.com>
---
 drivers/block/floppy.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 3817084..889f47e 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -4151,6 +4151,7 @@ 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;
 		}
-- 
1.7.9.5

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