linux-kernel - [PATCH 1/1 linux-next] fs/affs/super.c: destroy sbi mutex in affs_kill

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Message-Id: <1421174110-14397-1-git-send-email-fabf@skynet.be>
Date:	Tue, 13 Jan 2015 19:35:10 +0100
From:	Fabian Frederick <fabf@...net.be>
To:	linux-kernel@...r.kernel.org
Cc:	Fabian Frederick <fabf@...net.be>, Jan Kara <jack@...e.cz>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH 1/1 linux-next] fs/affs/super.c: destroy sbi mutex in affs_kill_sb()

Call mutex_destroy() on superblock mutex in affs_kill_sb()
otherwise mutex debugging code isn't able to detect that mutex
is used after being freed. (thanks to Jan Kara for complete definition).

Cc: Jan Kara <jack@...e.cz>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Fabian Frederick <fabf@...net.be>
---
 fs/affs/super.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/affs/super.c b/fs/affs/super.c
index f754ab6..ee8eca7 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -602,6 +602,7 @@ static void affs_kill_sb(struct super_block *sb)
 		affs_free_bitmap(sb);
 		affs_brelse(sbi->s_root_bh);
 		kfree(sbi->s_prefix);
+		mutex_destroy(&sbi->s_bmlock);
 		kfree(sbi);
 	}
 }
-- 
2.1.0

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