From: Po Lu <luangruo@yahoo.com>
Date: Thu, 2 Jun 2022 07:48:12 +0000 (+0800)
Subject: Fix potential NULL pointer dereference on NS
X-Git-Tag: emacs-29.0.90~1910^2~287
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=f71fad50fc4d10caaf156c37610f78f5edf3a255;p=emacs.git

Fix potential NULL pointer dereference on NS

* src/nsterm.m (ns_mouse_position): Don't test f's tooltip-ness
if it's NULL.
---

diff --git a/src/nsterm.m b/src/nsterm.m
index 9a23efe3ac1..b7b7bc2ad34 100644
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -2365,7 +2365,7 @@ ns_mouse_position (struct frame **fp, int insist, Lisp_Object *bar_window,
   if (!FRAME_NS_P (f))
     f = NULL;
 
-  if (FRAME_TOOLTIP_P (f))
+  if (f && FRAME_TOOLTIP_P (f))
     f = dpyinfo->last_mouse_frame;
 
   /* While dropping, use the last mouse frame only if there is no