Return callback return to caller in db.collection

Author: heroic

lib/mongodb/db.js

@@ -225,14 +225,14 @@ Db.prototype.collection = function(collectionName, callback) {
  if(collections.length == 0) {
  callback(new Error("Collection " + collectionName + " does not exist. Currently in strict mode."), null);
  } else {
- callback(null, new Collection(self, collectionName, self.pkFactory));
+ return callback(null, new Collection(self, collectionName, self.pkFactory));
  }
  });
  } else {
- callback(null, new Collection(self, collectionName, self.pkFactory));
+ return callback(null, new Collection(self, collectionName, self.pkFactory));
  }
  } catch(err) {
- callback(err, null);
+ return callback(err, null);
  }
 };