btrfs: avoid NULL deref in btrfs_reserve_extent with DEBUG_ENOSPC
authorJeff Mahoney <jeffm@suse.com>
Thu, 1 Mar 2012 13:56:28 +0000 (14:56 +0100)
committerDavid Sterba <dsterba@suse.cz>
Thu, 22 Mar 2012 00:45:32 +0000 (01:45 +0100)
 __find_space_info can return NULL but we don't check it before calling
 dump_space_info().

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
fs/btrfs/extent-tree.c

Simple merge