(emacs_blocked_free) [GC_MALLOC_CHECK]: Handle freeing

null.

diff --git a/src/ChangeLog b/src/ChangeLog
index 3cb5ce46d459ec970010dd5db9c8904111a088a7..8286648aca18437f939f90ee37855b06fd46b16c 100644 (file)
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,10 @@
+2000-10-23  Gerd Moellmann  <gerd@gnu.org>
+
+       * xterm.c (x_connection_closed): Reset handling_signal.
+
+       * alloc.c (emacs_blocked_free) [GC_MALLOC_CHECK]: Handle freeing
+       null.
+
 2000-10-23  Miles Bader  <miles@gnu.org>
 
        * window.c (window_scroll_pixel_based, window_scroll_line_based):
@@ -11,7 +18,7 @@
        that when a font can't be exactly centered, it errs up rather than
        down.
 
-2000-10-22 15:07:47  ShengHuo ZHU  <zsh@cs.rochester.edu>
+2000-10-22  ShengHuo ZHU  <zsh@cs.rochester.edu>
 
        * fns.c (Fbase64_decode_string): The decoded result should be
        unibyte.
@@ -21,7 +28,7 @@
        * dispextern.h [macintosh]: Include macgui.h instead of macterm.h.
 
        * dispnew.c [macintosh]: Include macterm.h.
-       (init_display) [macintosh]: initialization for window system.
+       (init_display) [macintosh]: Initialization for window system.
 
        * emacs.c (main) [macintosh]: Call syms_of_textprop,
        syms_of_macfns, syms_of_ccl, syms_of_fontset, syms_of_xterm,

diff --git a/src/alloc.c b/src/alloc.c
index 54c4b447fde32be5149f9aa9e6eee8351c190642..625dc14720fa4dfc629f243b83ffc7f92353bf85 100644 (file)
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -655,22 +655,23 @@ emacs_blocked_free (ptr)
   BLOCK_INPUT;
 
 #ifdef GC_MALLOC_CHECK
-  {
-    struct mem_node *m;
+  if (ptr)
+    {
+      struct mem_node *m;
   
-    m = mem_find (ptr);
-    if (m == MEM_NIL || m->start != ptr)
-      {
-       fprintf (stderr,
-                "Freeing `%p' which wasn't allocated with malloc\n", ptr);
-       abort ();
-      }
-    else
-      {
-       /* fprintf (stderr, "free %p...%p (%p)\n", m->start, m->end, ptr); */
-       mem_delete (m);
-      }
-  }
+      m = mem_find (ptr);
+      if (m == MEM_NIL || m->start != ptr)
+       {
+         fprintf (stderr,
+                  "Freeing `%p' which wasn't allocated with malloc\n", ptr);
+         abort ();
+       }
+      else
+       {
+         /* fprintf (stderr, "free %p...%p (%p)\n", m->start, m->end, ptr); */
+         mem_delete (m);
+       }
+    }
 #endif /* GC_MALLOC_CHECK */
   
   __free_hook = old_free_hook;