btrfs-progs: check: improved error handling in calc_extent_flag

All callers handle errors.

Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/cmds-check.c b/cmds-check.c
index df97d3b..aff3c03 100644 (file)
--- a/cmds-check.c
+++ b/cmds-check.c
@@ -6047,7 +6047,9 @@ static int calc_extent_flag(struct btrfs_root *root,
 
        cache = lookup_cache_extent(extent_cache, buf->start, 1);
        /* we have added this extent before */
-       BUG_ON(!cache);
+       if (!cache)
+               return -ENOENT;
+
        rec = container_of(cache, struct extent_record, cache);
 
        /*