Btrfs: make sure we update latest_bdev

[platform/adaptation/renesas_rcar/renesas_kernel.git] / fs / btrfs / disk-io.c

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 58d0678..b801d29 100644 (file)
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2305,6 +2305,12 @@ struct btrfs_root *open_ctree(struct super_block *sb,
 
        btrfs_close_extra_devices(fs_devices);
 
+       if (!fs_devices->latest_bdev) {
+               printk(KERN_CRIT "btrfs: failed to read devices on %s\n",
+                      sb->s_id);
+               goto fail_tree_roots;
+       }
+
 retry_root_backup:
        blocksize = btrfs_level_size(tree_root,
                                     btrfs_super_root_level(disk_super));