From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 30 Jul 2012 08:15:43 +0000 (-0600)
Subject: Btrfs: checking for NULL instead of IS_ERR
X-Git-Tag: v3.6-rc4~6^2~22
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=57a5a882031dba5cb7bc7ebc955b897498365fe2;p=profile%2Fivi%2Fkernel-adaptation-intel-automotive.git

Btrfs: checking for NULL instead of IS_ERR

add_qgroup_rb() never returns NULL, only error pointers.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---

diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 229ef89..38b42e7 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1364,8 +1364,10 @@ int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans,
 	spin_lock(&fs_info->qgroup_lock);
 
 	dstgroup = add_qgroup_rb(fs_info, objectid);
-	if (!dstgroup)
+	if (IS_ERR(dstgroup)) {
+		ret = PTR_ERR(dstgroup);
 		goto unlock;
+	}
 
 	if (srcid) {
 		srcgroup = find_qgroup_rb(fs_info, srcid);