shithub: lwext4

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FIX: ext4_listxattr not returning required list buffer size when size == 0.

--- a/lwext4/ext4.c

+++ b/lwext4/ext4.c

@@ -2102,11 +2102,16 @@

 	xattr_ref.iter_arg = &lxi;

 	ext4_fs_xattr_iterate(&xattr_ref, ext4_iterate_ea_list);

-	if (ret_size && lxi.list_too_small) {

-		*ret_size = lxi.ret_size;

+	if (lxi.list_too_small)

 		r = ERANGE;

-	}

+	if (r == EOK) {

+		if (lxi.get_required_size) {

+			if (ret_size)

+				*ret_size = lxi.ret_size;

+

+		}

+	}

 	ext4_fs_put_xattr_ref(&xattr_ref);

 	ext4_fs_put_inode_ref(&inode_ref);

 Finish: