btrfs: backref: Use ERR_CAST to return error code

Use ERR_CAST() instead of void * to make meaning clear.

Signed-off-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index 60f4afa..ae750b1 100644 (file)
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -2225,7 +2225,7 @@ struct inode_fs_paths *init_ipath(s32 total_bytes, struct btrfs_root *fs_root,
 
        fspath = init_data_container(total_bytes);
        if (IS_ERR(fspath))
-               return (void *)fspath;
+               return ERR_CAST(fspath);
 
        ifp = kmalloc(sizeof(*ifp), GFP_KERNEL);
        if (!ifp) {