xorg-x11-server/0024-dix-freeing-a-null-grab-is-a-bug-complain-if-doing-s.patch

28 lines
800 B
Diff

From 06b33d8b9f3d463810e6005379411bbd412accf4 Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Tue, 23 Apr 2013 15:46:04 +1000
Subject: [PATCH 24/35] dix: freeing a null grab is a bug, complain if doing so
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit 4980bcef9973ba1f90f53028f061669ee5d2661b)
---
dix/grabs.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/dix/grabs.c b/dix/grabs.c
index 3b02352..0a2111d 100644
--- a/dix/grabs.c
+++ b/dix/grabs.c
@@ -249,6 +249,8 @@ CreateGrab(int client, DeviceIntPtr device, DeviceIntPtr modDevice,
void
FreeGrab(GrabPtr pGrab)
{
+ BUG_RETURN(!pGrab);
+
if (pGrab->grabtype == XI2 && pGrab->type == XI_TouchBegin)
TouchListenerGone(pGrab->resource);
--
1.8.2.1