chan_dahdi: Remove some dead code.

........

Merged revisions 431992 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/13@431993 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_dahdi.c

@@ -1423,7 +1423,8 @@ static int my_distinctive_ring(struct ast_channel *chan, void *pvt, int idx, int
 
 		for (;;) {
 			i = DAHDI_IOMUX_READ | DAHDI_IOMUX_SIGEVENT;
-			if ((res = ioctl(p->subs[idx].dfd, DAHDI_IOMUX, &i))) {
+			res = ioctl(p->subs[idx].dfd, DAHDI_IOMUX, &i);
+			if (res) {
 				ast_log(LOG_WARNING, "I/O MUX failed: %s\n", strerror(errno));
 				ast_hangup(chan);
 				return 1;
@@ -1458,7 +1459,6 @@ static int my_distinctive_ring(struct ast_channel *chan, void *pvt, int idx, int
 				}
 				if (analog_p->ringt > 0) {
 					if (!(--analog_p->ringt)) {
-						res = -1;
 						break;
 					}
 				}

channels/sig_analog.c

@@ -1703,7 +1703,6 @@ static void *__analog_ss_thread(void *data)
 	char dtmfbuf[300];
 	char namebuf[ANALOG_MAX_CID];
 	char numbuf[ANALOG_MAX_CID];
-	struct callerid_state *cs = NULL;
 	char *name = NULL, *number = NULL;
 	int flags = 0;
 	struct ast_smdi_md_message *smdi_msg = NULL;
@@ -2391,7 +2390,6 @@ static void *__analog_ss_thread(void *data)
 				int timeout_ms;
 				int ms;
 				struct timeval start = ast_tvnow();
-				cs = NULL;
 				ast_debug(1, "Receiving DTMF cid on channel %s\n", ast_channel_name(chan));
 
 				oldlinearity = analog_set_linear_mode(p, idx, 0);
@@ -2609,8 +2607,6 @@ static void *__analog_ss_thread(void *data)
 			} else {
 				ast_log(LOG_WARNING, "Unable to get caller ID space\n");
 			}
-		} else {
-			cs = NULL;
 		}
 
 		if (number) {
@@ -2618,10 +2614,6 @@ static void *__analog_ss_thread(void *data)
 		}
 		ast_set_callerid(chan, number, name, number);
 
-		if (cs) {
-			callerid_free(cs);
-		}
-
 		analog_handle_notify_message(chan, p, flags, -1);
 
 		ast_channel_lock(chan);