From bbe48dd811474adc2df96803f910d4dc2b5e5bde Mon Sep 17 00:00:00 2001
From: Fabian Frederick <fabf@skynet.be>
Date: Sat, 10 Jan 2015 19:13:32 +0100
Subject: [PATCH] udf: destroy sbi mutex in put_super

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

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Jan Kara <jack@suse.cz>
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