meta-raspberrypi/recipes-graphics/userland/files/0006-zero-out-wl-buffers-in-egl_surface_free.patch

From 5acedbd1d27fe528687f27173d2af9b1786f580d Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Sat, 6 Feb 2016 11:10:47 -0800
Subject: [PATCH] zero-out wl buffers in egl_surface_free

origins from buildroot

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 interface/khronos/egl/egl_client_surface.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/interface/khronos/egl/egl_client_surface.c b/interface/khronos/egl/egl_client_surface.c
index 42350bf..1f923d9 100644
--- a/interface/khronos/egl/egl_client_surface.c
+++ b/interface/khronos/egl/egl_client_surface.c
@@ -690,11 +690,13 @@ void egl_surface_free(EGL_SURFACE_T *surface)
       if (surface->back_wl_buffer) {
          wl_buffer_destroy(surface->back_wl_buffer->wl_buffer);
          free(surface->back_wl_buffer);
+         surface->back_wl_buffer = 0;
       }
 
       if (surface->front_wl_buffer) {
          wl_buffer_destroy(surface->front_wl_buffer->wl_buffer);
          free(surface->front_wl_buffer);
+         surface->front_wl_buffer = 0;
       }
 #endif
    }