dsync: Fixed crash in earlier patch if node didn't have a namespace.

This shouldn't have happened except in test-dsync-mailbox-tree-sync, but
easier and safer to fix it here.

diff --git a/src/doveadm/dsync/dsync-mailbox-tree-sync.c b/src/doveadm/dsync/dsync-mailbox-tree-sync.c
index 88282b12f6f1169ddecdd3d3d6e298f573a2ae97..e1078909b48649e1156deb719d2afd3737f49260 100644 (file)
--- a/src/doveadm/dsync/dsync-mailbox-tree-sync.c
+++ b/src/doveadm/dsync/dsync-mailbox-tree-sync.c
@@ -361,7 +361,7 @@ static bool sync_node_is_namespace_prefix(struct dsync_mailbox_tree *tree,
                                          struct dsync_mailbox_node *node)
 {
        const char *full_name;
-       unsigned int prefix_len = node->ns->prefix_len;
+       unsigned int prefix_len = node->ns == NULL ? 0 : node->ns->prefix_len;
 
        if (prefix_len == 0)
                return FALSE;