btrfs-progs: Fix memory leak when 0 sized block group item is found

When a 0 sized block group item is found, set_extent_bits() will not
really set any bits.
While set_state_private() still inserts allocated block group cache into
block group extent_io_tree.

So at close_ctree() time, we won't free the private block group cache
stored since we can't find any bit set for the 0 sized block group.

To fix it, at btrfs_read_block_groups() we skip any 0 sized block group,
so such leak won't happen.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>

0 files changed, 0 insertions, 0 deletions