From: Paul Eggert <eggert@cs.ucla.edu>
Date: Tue, 23 Aug 2022 23:25:40 +0000 (-0700)
Subject: Fix unlikely core dump with Xaw
X-Git-Tag: emacs-29.0.90~1893^2~31
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=97067349a8d75ab720ff2e98653a6b21f60b221e;p=emacs.git

Fix unlikely core dump with Xaw

* lwlib/lwlib-Xaw.c (make_dialog): Don’t dump core if calloc fails.
Caught with --enable-gcc-warnings.
---

diff --git a/lwlib/lwlib-Xaw.c b/lwlib/lwlib-Xaw.c
index d17acae728b..b09795ec38c 100644
--- a/lwlib/lwlib-Xaw.c
+++ b/lwlib/lwlib-Xaw.c
@@ -594,6 +594,8 @@ make_dialog (char* name,
             int nr_xft_data = left_buttons + right_buttons + 1;
             instance->xft_data = calloc (nr_xft_data + 1,
                                          sizeof(*instance->xft_data));
+	    if (!instance->xft_data)
+	      memory_full ((nr_xft_data + 1) * sizeof *instance->xft_data);
 
             fill_xft_data (&instance->xft_data[0], w, xft_font);
 	    XtAddCallback (dialog, XtNdestroyCallback, destroy_xft_data,