Btrfs: return ENOMEM rather than use BUG_ON when btrfs_alloc_path fails
Return ENOMEM rather trigger BUG_ON, fix it.
Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Reviewed-by: Miao Xie <miaox@cn.fujitsu.com>
Reviewed-by: Zach Brown <zab@redhat.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index f011d9b..69fa487 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -620,7 +620,9 @@
key.offset = qgroupid;
path = btrfs_alloc_path();
- BUG_ON(!path);
+ if (!path)
+ return -ENOMEM;
+
ret = btrfs_search_slot(trans, root, &key, path, 0, 1);
if (ret > 0)
ret = -ENOENT;
@@ -661,7 +663,9 @@
key.offset = qgroup->qgroupid;
path = btrfs_alloc_path();
- BUG_ON(!path);
+ if (!path)
+ return -ENOMEM;
+
ret = btrfs_search_slot(trans, root, &key, path, 0, 1);
if (ret > 0)
ret = -ENOENT;
@@ -702,7 +706,9 @@
key.offset = 0;
path = btrfs_alloc_path();
- BUG_ON(!path);
+ if (!path)
+ return -ENOMEM;
+
ret = btrfs_search_slot(trans, root, &key, path, 0, 1);
if (ret > 0)
ret = -ENOENT;