MT#58441 Coverity Scan report introduced by 1bf894c

This is a fix for the following found defect:

*** CID 1568540:  Null pointer dereferences  (REVERSE_INULL)
/daemon/sdp.c: 2065 in insert_codec_parameters()
2059     						pt->payload_type,
2060     						STR_FMT(&pt->format_parameters));
2061     			}
2062     			if (s_dst->len) {
2063     				/* append to the chop->output */
2064     				append_attr_to_gstring(s, s_dst->str, NULL, flags,
>>>     CID 1568540:  Null pointer dereferences  (REVERSE_INULL)
>>>     Null-checking "cm" suggests that it may be null, but it has already been dereferenced on all paths leading to the check.
2065     							(cm ? cm->type_id : MT_UNKNOWN));
2066     			}
2067     			g_string_free(s_dst, TRUE);
2068     		}
2069
2070     		/* rtcp-fb */

Change-Id: I309fd6268b889ceaf32a58d2fbe17a8c891a95d6

daemon/sdp.c

@@ -2042,8 +2042,7 @@ static void insert_codec_parameters(GString *s, struct call_media *cm,
 					pt->payload_type,
 					STR_FMT(&pt->encoding_with_params));
 			/* append to the chop->output */
-			append_attr_to_gstring(s, s_dst->str, NULL, flags,
-						(cm ? cm->type_id : MT_UNKNOWN));
+			append_attr_to_gstring(s, s_dst->str, NULL, flags, cm->type_id);
 			g_string_truncate(s_dst, 0);
 		}
 
@@ -2066,8 +2065,7 @@ static void insert_codec_parameters(GString *s, struct call_media *cm,
 			}
 			if (s_dst->len) {
 				/* append to the chop->output */
-				append_attr_to_gstring(s, s_dst->str, NULL, flags,
-							(cm ? cm->type_id : MT_UNKNOWN));
+				append_attr_to_gstring(s, s_dst->str, NULL, flags, cm->type_id);
 			}
 			g_string_truncate(s_dst, 0);
 		}
@@ -2081,8 +2079,7 @@ static void insert_codec_parameters(GString *s, struct call_media *cm,
 						pt->payload_type,
 						STR_FMT(fb));
 				/* append to the chop->output */
-				append_attr_to_gstring(s, s_dst->str, NULL, flags,
-							(cm ? cm->type_id : MT_UNKNOWN));
+				append_attr_to_gstring(s, s_dst->str, NULL, flags, cm->type_id);
 			}
 		}