add_qgroup_rb() never returns NULL, only error pointers.
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
Applies to linux-next.
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index bc424ae..b650155 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);
--
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