* process.c (handle_child_signal): Fix crash; deleted pid.

This was introduced by my 2013-08-12 fix for Bug#15035.

Fixes: debbugs:15106

diff --git a/src/ChangeLog b/src/ChangeLog
index 0f68f36a8c9dacf146e7c58e56e8a84ae79ee3cc..0203ce636ef8b5fa6c48e21c0b0d5f4a94658261 100644 (file)
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2013-08-19  Paul Eggert  <eggert@cs.ucla.edu>
+
+       * process.c (handle_child_signal): Fix crash; deleted pid (Bug#15106).
+       This was introduced by my 2013-08-12 fix for Bug#15035.
+
 2013-08-19  Dmitry Antipov  <dmantipov@yandex.ru>
 
        * image.c (imagemagick_create_cache, imagemagick_get_animation_cache)

diff --git a/src/process.c b/src/process.c
index 64cb401c06a32cfd5c50c73019ddc1d0a8abb834..c4dd87a6b4850e984cd8c3ef46ad2cec058c5a84 100644 (file)
--- a/src/process.c
+++ b/src/process.c
@@ -6153,7 +6153,10 @@ handle_child_signal (int sig)
        = (MOST_NEGATIVE_FIXNUM <= TYPE_MINIMUM (pid_t)
           && TYPE_MAXIMUM (pid_t) <= MOST_POSITIVE_FIXNUM);
       Lisp_Object head = XCAR (tail);
-      Lisp_Object xpid = XCAR (head);
+      Lisp_Object xpid;
+      if (! CONSP (head))
+       continue;
+      xpid = XCAR (head);
       if (all_pids_are_fixnums ? INTEGERP (xpid) : NUMBERP (xpid))
        {
          pid_t deleted_pid;