From: Alan Third <alan@idiocy.org>
Date: Mon, 5 Oct 2020 19:38:45 +0000 (+0100)
Subject: Fix crash when creating new NS frame (bug#43812)
X-Git-Tag: emacs-28.0.90~5728
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=ec705a6c3485b508b64981bd5a7fd3a60611357d;p=emacs.git

Fix crash when creating new NS frame (bug#43812)

* src/nsterm.m (ns_clear_under_internal_border): Check the frame is
live.
---

diff --git a/src/nsterm.m b/src/nsterm.m
index fdcd677d144..a702a051d00 100644
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -3032,7 +3032,7 @@ ns_clear_under_internal_border (struct frame *f)
 {
   NSTRACE ("ns_clear_under_internal_border");
 
-  if (FRAME_INTERNAL_BORDER_WIDTH (f) > 0)
+  if (FRAME_LIVE_P (f) && FRAME_INTERNAL_BORDER_WIDTH (f) > 0)
     {
       int border_width = FRAME_INTERNAL_BORDER_WIDTH (f);
       NSView *view = FRAME_NS_VIEW (f);