From bf3e8b4d1069738597fc6264d50cc1924a91aae4 Mon Sep 17 00:00:00 2001
From: Victor Brekenfeld <github@drakulix.de>
Date: Sun, 10 May 2020 20:06:10 +0200
Subject: [PATCH] egl: check for surface creation failure

---
 src/backend/egl/surface.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/backend/egl/surface.rs b/src/backend/egl/surface.rs
index da09e8e..422845d 100644
--- a/src/backend/egl/surface.rs
+++ b/src/backend/egl/surface.rs
@@ -72,6 +72,10 @@ impl<N: native::NativeSurface> EGLSurface<N> {
             ffi::egl::CreateWindowSurface(**display, config, native.ptr(), surface_attributes.as_ptr())
         })?;
 
+        if surface == ffi::egl::NO_SURFACE {
+            return Err(EGLError::BadSurface);
+        }
+
         Ok(EGLSurface {
             display,
             native,