We have checked if ->node is NULL or not, so it is unnecessary to
use BUG_ON() to check again. Remove it.

Signed-off-by: Miao Xie <mi...@cn.fujitsu.com>
---
 fs/btrfs/disk-io.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 2a9ae38..8c1e4fb 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1513,7 +1513,6 @@ struct btrfs_root *btrfs_read_fs_root_no_radix(struct 
btrfs_root *tree_root,
        }
 
        root->commit_root = btrfs_root_node(root);
-       BUG_ON(!root->node); /* -ENOMEM */
 out:
        if (location->objectid != BTRFS_TREE_LOG_OBJECTID) {
                root->ref_cows = 1;
-- 
1.8.1.4

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