btrfs-progs: check: better error handling in find_parent_roots
authorDavid Sterba <dsterba@suse.com>
Fri, 30 Sep 2016 16:51:46 +0000 (18:51 +0200)
committerDavid Sterba <dsterba@suse.com>
Mon, 3 Oct 2016 13:07:24 +0000 (15:07 +0200)
commitd89205c4a5304572d8b6e67cee25594d4baaedee
tree6eb2c2f2062685d983d9ca7f9bbdf01da276983c
parent801f15bdf1598a75f20d1c07d3e0640d37499165
btrfs-progs: check: better error handling in find_parent_roots

Fix use-before-sanity-check leading to undefined behaviour and handle
errors more gracefully.

Reported-by: Lukas Lueg <lukas.lueg@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=156811
Signed-off-by: David Sterba <dsterba@suse.com>
qgroup-verify.c