Angular JS Promise Chaining

Question

I have 2 functions that needs to be sequentially called one after another.Currently the secondFunc is called before the firstFunc completes execution .Any help as to what is wrong in this code would be appreciated .Thank you

driverFunc()
   var deferred=$q.defer();
   var promise=deferred.promise.then($scope.firstFunc()).then($scope.secondFunc());


firstFunc()
   var url="some URL"
   $http.get(url).then(function(data)){
       $scope.resultset=data;
       defer.resolve();
        },function(err){
        defer.reject();
        }
   
    return defer.promise;


secondFunc()
    //$scope.resultset required here