MT#55283 annotate nonull args

Change-Id: I1f9c10926e300689ac4f6be1aad2f78498deb404

daemon/codec.c

@@ -2072,22 +2072,24 @@ void mqtt_timer_start(struct mqtt_timer **mqtp, call_t *call, struct call_media
 
 
 // master lock held in W
+__attribute__((nonnull(1)))
 static void codec_timer_stop(struct codec_timer **ctp) {
-	if (!ctp)
-		return;
 	obj_release(*ctp);
 }
+
 // master lock held in W
+__attribute__((nonnull(1)))
 void rtcp_timer_stop(struct rtcp_timer **rtp) {
 	codec_timer_stop((struct codec_timer **) rtp);
 }
+
+__attribute__((nonnull(1)))
 void mqtt_timer_stop(struct mqtt_timer **mqtp) {
 	codec_timer_stop((struct codec_timer **) mqtp);
 }
 
 
 
-
 // call must be locked in R
 struct codec_handler *codec_handler_get(struct call_media *m, int payload_type, struct call_media *sink,
 		struct sink_handler *sh)
@@ -3500,9 +3502,13 @@ static void dtx_packet_free(struct dtx_packet *dtxp) {
 	ssrc_entry_release(dtxp->input_handler);
 	g_free(dtxp);
 }
+
+__attribute__((nonnull(1)))
 static void delay_buffer_stop(struct delay_buffer **pcmbp) {
 	codec_timer_stop((struct codec_timer **) pcmbp);
 }
+
+__attribute__((nonnull(1)))
 static void dtx_buffer_stop(struct dtx_buffer **dtxbp) {
 	codec_timer_stop((struct codec_timer **) dtxbp);
 }