From 7dc3e83901b342ea7fe36262329c3784f2937361 Mon Sep 17 00:00:00 2001
From: jiangyiwen <jiangyiwen@huawei.com>
Date: Thu, 3 Apr 2014 14:47:12 -0700
Subject: [PATCH] ocfs2: iput inode alloc when failed locally

In ocfs2_info_handle_freeinode() and ocfs2_test_inode_bit() func, after
calls ocfs2_get_system_file_inode() to get inode ref, if calls
ocfs2_info_scan_inode_alloc() or ocfs2_inode_lock() failed, we should
iput inode alloc to avoid leaking the inode.

Signed-off-by: jiangyiwen <jiangyiwen@huawei.com>
Reviewed-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/ocfs2/ioctl.c    | 5 +++--
 fs/ocfs2/suballoc.c | 1 +
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
index 8ca3c29accbf..490229f43731 100644
--- a/fs/ocfs2/ioctl.c
+++ b/fs/ocfs2/ioctl.c
@@ -413,11 +413,12 @@ int ocfs2_info_handle_freeinode(struct inode *inode,
 		}
 
 		status = ocfs2_info_scan_inode_alloc(osb, inode_alloc, blkno, oifi, i);
-		if (status < 0)
-			goto bail;
 
 		iput(inode_alloc);
 		inode_alloc = NULL;
+
+		if (status < 0)
+			goto bail;
 	}
 
 	o2info_set_request_filled(&oifi->ifi_req);
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index 94fb1f3d9e62..0cb889a17ae1 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -2894,6 +2894,7 @@ int ocfs2_test_inode_bit(struct ocfs2_super *osb, u64 blkno, int *res)
 	status = ocfs2_inode_lock(inode_alloc_inode, &alloc_bh, 0);
 	if (status < 0) {
 		mutex_unlock(&inode_alloc_inode->i_mutex);
+		iput(inode_alloc_inode);
 		mlog(ML_ERROR, "lock on alloc inode on slot %u failed %d\n",
 		     (u32)suballoc_slot, status);
 		goto bail;
-- 
2.20.1