tree e5f9e57aeee77704758c6dfeb19654140a827ef2
parent 961cecbee6786f4b1f1b8f695e87045b583f9f49
author Julia Lawall <julia@diku.dk> 1216627155 +0200
committer Mark Fasheh <mfasheh@suse.com> 1217546474 -0700

[PATCH] ocfs2: Release mutex in error handling code

The mutex is released on a successful return, so it would seem that it
should be released on an error return as well.

The semantic patch finds this problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
expression l;
@@

mutex_lock(l);
... when != mutex_unlock(l)
    when any
    when strict
(
if (...) { ... when != mutex_unlock(l)
+   mutex_unlock(l);
    return ...;
}
|
mutex_unlock(l);
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>