SDL: Check the display device before dereferencing (0c360)

From 0c3603d8937f117dba2e72395a75cbc2f7a41a3a Mon Sep 17 00:00:00 2001
From: Frank Praznik <[EMAIL REDACTED]>
Date: Mon, 3 Mar 2025 11:24:25 -0500
Subject: [PATCH] Check the display device before dereferencing

It can be null if the desktop mode is set early during initial display enumeration.

(cherry picked from commit 0ccf272eeadd7c0b3f7691e11d67b702f0bcd3e1)
---
 src/video/SDL_video.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/video/SDL_video.c b/src/video/SDL_video.c
index 5350bfb4c5edd..7ae7816181056 100644
--- a/src/video/SDL_video.c
+++ b/src/video/SDL_video.c
@@ -1435,7 +1435,7 @@ void SDL_SetDesktopDisplayMode(SDL_VideoDisplay *display, const SDL_DisplayMode
 {
     SDL_DisplayMode last_mode;
 
-    if (display->fullscreen_window || display->device->setting_display_mode) {
+    if (display->fullscreen_window || (display->device && display->device->setting_display_mode)) {
         // This is a temporary mode change, don't save the desktop mode
         return;
     }