localize some variables

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@25652 65c4cc65-6c06-0410-ace0-fbb531ad65f3

pbx.c

@@ -1691,15 +1691,16 @@ int ast_extension_state(struct ast_channel *c, const char *context, const char *
 void ast_hint_state_changed(const char *device)
 {
 	struct ast_hint *hint;
+
+	AST_LIST_LOCK(&hints);
+
+	AST_LIST_TRAVERSE(&hints, hint, list) {
 		struct ast_state_cb *cblist;
 		char buf[AST_MAX_EXTENSION];
 		char *parse;
 		char *cur;
 		int state;
 
-	AST_LIST_LOCK(&hints);
-
-	AST_LIST_TRAVERSE(&hints, hint, list) {
 		ast_copy_string(buf, ast_get_extension_app(hint->exten), sizeof(buf));
 		parse = buf;
 		for (cur = strsep(&parse, "&"); cur; cur = strsep(&parse, "&")) {