fix duplicated call of callback

Author: peecky

lib/uploadhandler.js

@@ -37,20 +37,18 @@ module.exports = function (options) {
         fs.readdir(options.uploadDir(), _.bind(function (err, list) {
             async.each(list, _.bind(function(name, cb) {
                 fs.stat(options.uploadDir() + '/' + name, _.bind(function(err, stats) {
-                    if (!err) {
-                        if (stats.isFile()) {
-                            fileInfo = new FileInfo({
-                                name: name,
-                                size: stats.size
-                            });
-                            this.initUrls(fileInfo, function(err) {
-                                files.push(fileInfo);
-                                cb(err);
-                                return;
-                            });
-                        }
+                    if (!err && stats.isFile()) {
+                        fileInfo = new FileInfo({
+                            name: name,
+                            size: stats.size
+                        });
+                        this.initUrls(fileInfo, function(err) {
+                            files.push(fileInfo);
+                            cb(err);
+                            return;
+                        });
                     }
-                    cb(err);
+                    else cb(err);
                 }, this));
             }, this),
             function(err) {