Make use less redundant loop construct for iterating over hints.

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/10@329334 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/pbx.c

@@ -6084,7 +6084,7 @@ static char *handle_show_hints(struct ast_cli_entry *e, int cmd, struct ast_cli_
 	ast_cli(a->fd, "\n    -= Registered Asterisk Dial Plan Hints =-\n");
 
 	i = ao2_iterator_init(hints, 0);
-	for (hint = ao2_iterator_next(&i); hint; ao2_ref(hint, -1), hint = ao2_iterator_next(&i)) {
+	for (; (hint = ao2_iterator_next(&i)); ao2_ref(hint, -1)) {
 		ao2_lock(hint);
 		if (!hint->exten) {
 			/* The extension has already been destroyed */
@@ -6123,7 +6123,7 @@ static char *complete_core_show_hint(const char *line, const char *word, int pos
 
 	/* walk through all hints */
 	i = ao2_iterator_init(hints, 0);
-	for (hint = ao2_iterator_next(&i); hint; ao2_ref(hint, -1), hint = ao2_iterator_next(&i)) {
+	for (; (hint = ao2_iterator_next(&i)); ao2_ref(hint, -1)) {
 		ao2_lock(hint);
 		if (!hint->exten) {
 			/* The extension has already been destroyed */
@@ -6172,7 +6172,7 @@ static char *handle_show_hint(struct ast_cli_entry *e, int cmd, struct ast_cli_a
 
 	extenlen = strlen(a->argv[3]);
 	i = ao2_iterator_init(hints, 0);
-	for (hint = ao2_iterator_next(&i); hint; ao2_ref(hint, -1), hint = ao2_iterator_next(&i)) {
+	for (; (hint = ao2_iterator_next(&i)); ao2_ref(hint, -1)) {
 		ao2_lock(hint);
 		if (!hint->exten) {
 			/* The extension has already been destroyed */
@@ -7414,7 +7414,7 @@ void ast_merge_contexts_and_delete(struct ast_context **extcontexts, struct ast_
 
 	/* preserve all watchers for hints */
 	i = ao2_iterator_init(hints, AO2_ITERATOR_DONTLOCK);
-	for (hint = ao2_iterator_next(&i); hint; ao2_ref(hint, -1), hint = ao2_iterator_next(&i)) {
+	for (; (hint = ao2_iterator_next(&i)); ao2_ref(hint, -1)) {
 		if (ao2_container_count(hint->callbacks)) {
 			ao2_lock(hint);
 			if (!hint->exten) {
@@ -10207,7 +10207,7 @@ static int hints_data_provider_get(const struct ast_data_search *search,
 	}
 
 	i = ao2_iterator_init(hints, 0);
-	for (hint = ao2_iterator_next(&i); hint; ao2_ref(hint, -1), hint = ao2_iterator_next(&i)) {
+	for (; (hint = ao2_iterator_next(&i)); ao2_ref(hint, -1)) {
 		watchers = ao2_container_count(hint->callbacks);
 		data_hint = ast_data_add_node(data_root, "hint");
 		if (!data_hint) {