Fix static analysis issue

- Fix 'resource leak'
- Fix 'Uninitialized scalar variable'
- Fix 'Dereference null return value'

Change-Id: I70231bcc28287b8da2a999f8e0931670af6e464d
Signed-off-by: Junghoon Park <jh9216.park@samsung.com>

2 files changed, 16 insertions, 0 deletions

diff --git a/src/base/widget_base.c b/src/base/widget_base.c
index e43635d..1843061 100644
--- a/src/base/widget_base.c
+++ b/src/base/widget_base.c
@@ -1600,6 +1600,7 @@ EXPORT_API widget_base_class widget_base_class_get_default(void)
 	cls.ops.destroy = __class_on_destroy;
 	cls.ops.pause = __class_on_pause;
 	cls.ops.resume = __class_on_resume;
+	cls.id = NULL;
 
 	return cls;
 }
diff --git a/src/efl_base/widget_app.c b/src/efl_base/widget_app.c
index 640dca2..6197b31 100644
--- a/src/efl_base/widget_app.c
+++ b/src/efl_base/widget_app.c
@@ -51,6 +51,8 @@ struct app_class_cb_info {
 	void *user_data;
 };
 
+static GList *__class_data_list;
+
 static int __class_resize(widget_base_instance_h instance_h, int w, int h,
 		void *class_data)
 {
@@ -62,6 +64,13 @@ static int __class_resize(widget_base_instance_h instance_h, int w, int h,
 	widget_base_class_on_resize(instance_h, w, h);
 	data = (struct instance_data *)
 			widget_base_context_get_user_data(instance_h);
+
+	if (!data) {
+		_E("widget_base_context_get_user_data() returns null");
+
+		return -1;
+	}
+
 	if (data->win)
 		evas_object_resize(data->win, w, h);
 	else
@@ -253,6 +262,11 @@ EXPORT_API int widget_app_main(int argc, char **argv,
 	cb_info.user_data = user_data;
 
 	r = widget_base_init(ops, argc, argv, &cb_info);
+	if (__class_data_list) {
+		g_list_free_full(__class_data_list, free);
+		__class_data_list = NULL;
+	}
+
 	widget_base_fini();
 
 	return r;
@@ -428,6 +442,7 @@ EXPORT_API widget_class_h widget_app_class_add(widget_class_h widget_class,
 		return NULL;
 	}
 
+	__class_data_list = g_list_append(__class_data_list, callback_data);
 	set_last_result(WIDGET_ERROR_NONE);
 
 	return wc;