From dedceb52bcbba2431368b53acbbba490ac8ee485 Mon Sep 17 00:00:00 2001
From: Alan Coopersmith <alan.coopersmith@oracle.com>
Date: Sat, 11 Oct 2025 12:59:04 -0700
Subject: [PATCH] dix: handle allocation failure in DeviceFocusEvent()
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Reported in #1817:

xwayland-24.1.6/redhat-linux-build/../dix/enterleave.c:786:5:
 warning[-Wanalyzer-possible-null-dereference]:
 dereference of possibly-NULL ‘xi2event’

Fixes: 3f37923a7 ("Xi: send XI2 focus events." in Xorg 1.10.0)
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/2078>
---
 dix/enterleave.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dix/enterleave.c b/dix/enterleave.c
index b954c8e21..c10d27e96 100644
--- a/dix/enterleave.c
+++ b/dix/enterleave.c
@@ -783,6 +783,7 @@ DeviceFocusEvent(DeviceIntPtr dev, int type, int mode, int detail,
     len = sizeof(xXIFocusInEvent) + btlen * 4;
 
     xi2event = calloc(1, len);
+    BUG_RETURN(xi2event == NULL);
     xi2event->type = GenericEvent;
     xi2event->extension = IReqCode;
     xi2event->evtype = type;