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ocfs2: unlock rw lock if inode lock failed 

In ocfs2_file_aio_write(), it does ocfs2_rw_lock() first and then
ocfs2_inode_lock().

But if ocfs2_inode_lock() failed, it goes to out_sems without unlocking
rw lock.  This will cause a bug in ocfs2_lock_res_free() when testing
res->l_ex_holders, which is increased in __ocfs2_cluster_lock() and
decreased in __ocfs2_cluster_unlock().

Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Li Zefan <lizefan@huawei.com>
Cc: "Duyongfeng (B)" <du.duyongfeng@huawei.com>
Acked-by: Sunil Mushran <sunil.mushran@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joseph Qi 2013-05-24 15:55:12 -07:00 committed by Linus Torvalds
parent d34883d4e3
commit afe1bb73f8
1 changed files with 1 additions and 1 deletions
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2
fs/ocfs2/file.c
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@ -2288,7 +2288,7 @@ relock:
ret = ocfs2_inode_lock(inode, NULL, 1); ret = ocfs2_inode_lock(inode, NULL, 1);
if (ret < 0) { if (ret < 0) {
mlog_errno(ret); mlog_errno(ret);
goto out_sems; goto out;
} }
ocfs2_inode_unlock(inode, 1); ocfs2_inode_unlock(inode, 1);