From: Joonbum Ko <joonbum.ko@samsung.com>
Date: Wed, 10 Mar 2021 06:38:40 +0000 (+0900)
Subject: Add NULL checking to prevent dereferenced problem.
X-Git-Tag: accepted/tizen/unified/20210316.151423^0
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a954525ca87193e1a7c840fa71172f2310d1bea1;p=platform%2Fcore%2Fuifw%2Fvulkan-wsi-tizen.git

Add NULL checking to prevent dereferenced problem.

Change-Id: I6ff1a170342dd25822739dc0d4f11ff95c43e492
Signed-off-by: Joonbum Ko <joonbum.ko@samsung.com>
---

diff --git a/samples/tri.c b/samples/tri.c
index b42cd55..b3986d6 100644
--- a/samples/tri.c
+++ b/samples/tri.c
@@ -1789,16 +1789,18 @@ static const struct wl_shell_surface_listener shell_surface_listener = {
 static void demo_create_window(struct demo *demo) {
 	demo->wl_surface = wl_compositor_create_surface(demo->compositor);
 
-	demo->shell_surface = wl_shell_get_shell_surface(demo->shell, demo->wl_surface);
+    if (demo->wl_surface) {
+	    demo->shell_surface = wl_shell_get_shell_surface(demo->shell, demo->wl_surface);
 
-	if (demo->shell_surface) {
-		wl_shell_surface_add_listener(demo->shell_surface,
-									  &shell_surface_listener, demo);
-		wl_shell_surface_set_toplevel(demo->shell_surface);
-		wl_shell_surface_set_title(demo->shell_surface, APP_SHORT_NAME);
-	}
+	    if (demo->shell_surface) {
+	    	wl_shell_surface_add_listener(demo->shell_surface,
+	    								  &shell_surface_listener, demo);
+	    	wl_shell_surface_set_toplevel(demo->shell_surface);
+	    	wl_shell_surface_set_title(demo->shell_surface, APP_SHORT_NAME);
+	    }
 
-	wl_surface_set_user_data(demo->wl_surface, demo);
+	    wl_surface_set_user_data(demo->wl_surface, demo);
+    }
 }
 #endif // _WIN32