btrfs: don't drop a reference if btrfs_check_write_meta_pointer() fails

In the zoned mode there's a bug in the extent buffer tree conversion to
xarray. The reference for eb is dropped and code continues but the
references get dropped by releasing the batch.

Reported-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Fixes: 19d7f65f032f ("btrfs: convert the buffer_radix to an xarray")
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Tested-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index e43f6280f9543a83cf695507b8880799710e31ae..849199768664603ee56df9e811d427be54e042da 100644 (file)
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2189,7 +2189,6 @@ retry:
                                        done = 1;
                                        break;
                                }
-                               free_extent_buffer(eb);
                                continue;
                        }