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From 1c9ad2f2bbd9ad99b89c330ee809f5752cb03877 Mon Sep 17 00:00:00 2001
From: Max Krummenacher <max.krummenacher@toradex.com>
Date: Thu, 4 Feb 2021 20:37:02 +0000
Subject: [PATCH 2/2] libweston/pixman-renderer.c: zero freed pointer
Setting struct elements in a struct just before the whole struct
is freed makes little sense, however zero the pointer to said struct
guards against using the no longer assigned memory.
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
---
libweston/pixman-renderer.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/libweston/pixman-renderer.c b/libweston/pixman-renderer.c
index 59b1f0ff..ec037e44 100644
--- a/libweston/pixman-renderer.c
+++ b/libweston/pixman-renderer.c
@@ -967,6 +967,9 @@ pixman_renderer_output_destroy(struct weston_output *output)
{
struct pixman_output_state *po = get_output_state(output);
+ if (!po)
+ return;
+
if (po->shadow_image)
pixman_image_unref(po->shadow_image);
@@ -975,9 +978,6 @@ pixman_renderer_output_destroy(struct weston_output *output)
free(po->shadow_buffer);
- po->shadow_buffer = NULL;
- po->shadow_image = NULL;
- po->hw_buffer = NULL;
-
free(po);
+ output->renderer_state = NULL;
}
--
2.20.1
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