btrfs-progs: fi du: catch bogus extent lengths
authorDavid Sterba <dsterba@suse.com>
Wed, 7 Sep 2016 12:51:17 +0000 (14:51 +0200)
committerDavid Sterba <dsterba@suse.com>
Mon, 3 Oct 2016 09:33:04 +0000 (11:33 +0200)
commit44af5de2f381f641f04948dd7e95888652648f39
tree38cffe5310afe6882b2151f900d1907178017612
parent939bc6323b701e860a4f45148d664c336c9c0afa
btrfs-progs: fi du: catch bogus extent lengths

If we get a zero-length from the ioctl for whatever reason, we should
not crash.

Signed-off-by: David Sterba <dsterba@suse.com>
cmds-fi-du.c