{
my ($self, $flag, $node, $user) = @_;
my $nref = Route::Node::get($node);
- if ($nref) {
- if ($nref->dxchan == $self) {
+ my $dxchan = $nref->dxchan if $nref;
+ if ($nref && $dxchan) {
+ if ($dxchan == $self) {
return 1 unless $user;
my @users = $nref->users;
return 1 if @users == 0 || grep $user eq $_, @users;