From: Younger Liu <younger.liu@huawei.com>
Date: Tue, 5 Nov 2013 05:55:07 +0000 (+1100)
Subject: ocfs2: do not call brelse() if group_bh is not initialized in ocfs2_group_add()
X-Git-Tag: next-20131105~2^2~302
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=7f770958cb06e3a18f70c8883f26bbdf6c30e1ce;p=karo-tx-linux.git

ocfs2: do not call brelse() if group_bh is not initialized in ocfs2_group_add()

If group_bh is not initialized, there is no need to release.  This problem
does not cause anything wrong, but the patch would make the code more
logical.

Signed-off-by: Younger Liu <younger.liu@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Acked-by: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/fs/ocfs2/resize.c b/fs/ocfs2/resize.c
index 376750f7883e..822ebc10f281 100644
--- a/fs/ocfs2/resize.c
+++ b/fs/ocfs2/resize.c
@@ -514,7 +514,7 @@ int ocfs2_group_add(struct inode *inode, struct ocfs2_new_group_input *input)
 	ret = ocfs2_verify_group_and_input(main_bm_inode, fe, input, group_bh);
 	if (ret) {
 		mlog_errno(ret);
-		goto out_unlock;
+		goto out_free_group_bh;
 	}
 
 	trace_ocfs2_group_add((unsigned long long)input->group,
@@ -524,7 +524,7 @@ int ocfs2_group_add(struct inode *inode, struct ocfs2_new_group_input *input)
 	if (IS_ERR(handle)) {
 		mlog_errno(PTR_ERR(handle));
 		ret = -EINVAL;
-		goto out_unlock;
+		goto out_free_group_bh;
 	}
 
 	cl_bpc = le16_to_cpu(fe->id2.i_chain.cl_bpc);
@@ -577,8 +577,11 @@ int ocfs2_group_add(struct inode *inode, struct ocfs2_new_group_input *input)
 
 out_commit:
 	ocfs2_commit_trans(osb, handle);
-out_unlock:
+
+out_free_group_bh:
 	brelse(group_bh);
+
+out_unlock:
 	brelse(main_bm_bh);
 
 	ocfs2_inode_unlock(main_bm_inode, 1);