From: Filipe Manana <fdmanana@suse.com>
Date: Mon, 12 Feb 2024 21:50:53 +0000 (+0000)
Subject: btrfs: zoned: fix chunk map leak when loading block group zone info
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=88e81a67773017a2b93f6d5fe7c78bb0c5a6e4dd;p=linux.git

btrfs: zoned: fix chunk map leak when loading block group zone info

At btrfs_load_block_group_zone_info() we never drop a reference on the
chunk map we have looked up, therefore leaking a reference on it. So
add the missing btrfs_free_chunk_map() at the end of the function.

Fixes: 7dc66abb5a47 ("btrfs: use a dedicated data structure for chunk maps")
Reported-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Tested-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---

diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index ac9bbe0c4ffe6..afeb1dc1f43ae 100644
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -1687,6 +1687,7 @@ out:
 	}
 	bitmap_free(active);
 	kfree(zone_info);
+	btrfs_free_chunk_map(map);
 
 	return ret;
 }