win-capture: Fix possible null pointer dereference

2016-12-23 02:01:09 -08:00 · 2016-12-23 02:01:09 -08:00 · 4fe2ca0f75
parent bd67c18c02
commit 4fe2ca0f75
1 changed files with 4 additions and 0 deletions
--- a/plugins/win-capture/window-helpers.c
+++ b/plugins/win-capture/window-helpers.c
@ -338,6 +338,10 @@ HWND find_window(enum window_search_mode mode,
 	HWND window      = first_window(mode, &parent);
 	HWND best_window = NULL;
 	int  best_rating = 0;
+
+	if (!class)
+		return NULL;
+
 	bool uwp_window  = strcmp(class, "Windows.UI.Core.CoreWindow") == 0;

 	while (window) {