From: Jim Meyering <jim@meyering.net>
Date: Thu, 12 Jun 2008 22:53:07 +0000 (+0000)
Subject: make unexec_free handle NULL the same way free does
X-Git-Tag: emacs-pretest-23.0.90~4845
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=9c5e177ecf929a3c4aaf76133dbe3eacac124b2b;p=emacs.git

make unexec_free handle NULL the same way free does

* unexmacosx.c (unexec_free): Ignore a NULL argument.
---

diff --git a/src/ChangeLog b/src/ChangeLog
index 6361f522fe7..a936794edc7 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2008-06-12  Jim Meyering  <meyering@redhat.com>
+
+	make unexec_free handle NULL the same way free does
+	* unexmacosx.c (unexec_free): Ignore a NULL argument.
+
 2008-06-12  Stefan Monnier  <monnier@iro.umontreal.ca>
 
 	* character.h (CHAR_TO_BYTE_SAFE): New macro.
diff --git a/src/unexmacosx.c b/src/unexmacosx.c
index 46622601281..57f70f8557f 100644
--- a/src/unexmacosx.c
+++ b/src/unexmacosx.c
@@ -1318,6 +1318,8 @@ unexec_realloc (void *old_ptr, size_t new_size)
 void
 unexec_free (void *ptr)
 {
+  if (ptr == NULL)
+    return;
   if (in_dumped_exec)
     {
       if (!ptr_in_unexec_regions (ptr))