From: Chong Yidong <cyd@stupidchicken.com>
Date: Tue, 30 Aug 2011 22:38:07 +0000 (-0400)
Subject: Fix syntax scanning bug causing fontification crashes.
X-Git-Tag: emacs-pretest-24.0.90~104^3~2
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=6e20a0d47c053a9524edfc6af390bf1e562a5020;p=emacs.git

Fix syntax scanning bug causing fontification crashes.

* src/syntax.c (find_defun_start): Update all cache variables if
exiting early.

Fixes: debbugs:9401
---

diff --git a/src/ChangeLog b/src/ChangeLog
index 8c050b3a3ec..6c8f5a9305a 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2011-08-30  Chong Yidong  <cyd@stupidchicken.com>
+
+	* syntax.c (find_defun_start): Update all cache variables if
+	exiting early (Bug#9401).
+
 2011-08-19  Andreas Schwab  <schwab@linux-m68k.org>
 
 	* keyboard.c: Include "process.h"
diff --git a/src/syntax.c b/src/syntax.c
index bfdf0e5ee6d..ba3810227eb 100644
--- a/src/syntax.c
+++ b/src/syntax.c
@@ -364,7 +364,12 @@ find_defun_start (pos, pos_byte)
 
   if (!open_paren_in_column_0_is_defun_start)
     {
+      find_start_value = BEGV;
       find_start_value_byte = BEGV_BYTE;
+      find_start_buffer = current_buffer;
+      find_start_modiff = MODIFF;
+      find_start_begv = BEGV;
+      find_start_pos = pos;
       return BEGV;
     }