Btrfs: fix cache_block_group error handling

cache block group had a few bugs in the error handling code,
this makes sure paths get properly released and the correct return value
goes out.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
1 file changed
tree: af8ba03fb6113dd9dfaf37f15c70595bfd8b2a92
  1. fs/