[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>
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index be2dd95..ec2ed15 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1766,8 +1766,8 @@
out_rw_unlock:
ocfs2_rw_unlock(inode, 1);
- mutex_unlock(&inode->i_mutex);
out:
+ mutex_unlock(&inode->i_mutex);
return ret;
}