* lisp/progmodes/cperl-mode.el (cperl-unwind-to-safe): Don't inf-loop at end

of narrowed buffer.

Fixes: debbugs:11966

lisp/ChangeLog

@@ -1,3 +1,8 @@
+2012-07-18  Stefan Monnier  <monnier@iro.umontreal.ca>
+
+	* progmodes/cperl-mode.el (cperl-unwind-to-safe): Don't inf-loop at end
+	of narrowed buffer (bug#11966).
+
 2012-07-09  Stefan Monnier  <monnier@iro.umontreal.ca>
 
 	* progmodes/sh-script.el (sh-syntax-propertize-function): Fix last

lisp/progmodes/cperl-mode.el

@@ -3498,7 +3498,8 @@ Works before syntax recognition is done."
     (if end
 	;; Do the same for end, going small steps
 	(save-excursion
-	  (while (and end (get-text-property end 'syntax-type))
+	  (while (and end (< end (point-max))
+		      (get-text-property end 'syntax-type))
 	    (setq pos end
 		  end (next-single-property-change end 'syntax-type nil (point-max)))
 	    (if end (progn (goto-char end)