app_chanspy, channel: fix frame leaks

Fixed a couple of frame leaks that were found during testing.

ASTERISK-24828 #close
Reported by: John Hardin
Review: https://reviewboard.asterisk.org/r/4445/
........

Merged revisions 432362 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/13@432363 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_chanspy.c

@@ -698,6 +698,9 @@ static int channel_spy(struct ast_channel *chan, struct ast_autochan *spyee_auto
 	while (ast_waitfor(chan, -1) > -1 && csth.spy_audiohook.status == AST_AUDIOHOOK_STATUS_RUNNING) {
 		if (!(f = ast_read(chan)) || ast_check_hangup(chan)) {
 			running = -1;
+			if (f) {
+				ast_frfree(f);
+			}
 			break;
 		}
 

main/channel.c

@@ -2824,14 +2824,14 @@ int __ast_answer(struct ast_channel *chan, unsigned int delay)
 				}
 			}
 
-			if (res == 0) {
-				ast_channel_lock(chan);
-				while ((cur = AST_LIST_REMOVE_HEAD(&frames, frame_list))) {
+			ast_channel_lock(chan);
+			while ((cur = AST_LIST_REMOVE_HEAD(&frames, frame_list))) {
+				if (res == 0) {
 					ast_queue_frame_head(chan, cur);
-					ast_frfree(cur);
 				}
-				ast_channel_unlock(chan);
+				ast_frfree(cur);
 			}
+			ast_channel_unlock(chan);
 		} while (0);
 		break;
 	default: