From: David Sterba <dsterba@suse.com>
Date: Tue, 6 Sep 2016 11:08:29 +0000 (+0200)
Subject: btrfs-progs: check: improved error handling in calc_extent_flag
X-Git-Tag: upstream/4.16.1~1278
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=40ca1d513d97c71aad79953bbc3bb56ddea7adc5;p=platform%2Fupstream%2Fbtrfs-progs.git

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
--- 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);
 
 	/*