btrfs-progs: pass up return value of walk_down_tree
authorLin Ming <mlin@kernel.org>
Fri, 3 May 2013 03:51:38 +0000 (23:51 -0400)
committerDavid Sterba <dsterba@suse.cz>
Fri, 9 Aug 2013 12:32:29 +0000 (14:32 +0200)
commit3d86ac20b74a736c4b7e0881dac5ff4d3dbbcd11
tree4160930866900010970acdba7d6655c7cf3c4de4
parentde394eaed52692bbe3bc203528a40183dac1ddbc
btrfs-progs: pass up return value of walk_down_tree

Pass up return value of walk_down_tree, so the caller can handle it.
This also fixes a segfault when read_tree_block fails with NULL returned.

Signed-off-by: Lin Ming <mlin@kernel.org>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
cmds-check.c