gsm_04_08: Use subscr_get_channel instead of directly paging_request

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
diff --git a/openbsc/src/gsm_04_08.c b/openbsc/src/gsm_04_08.c
index b3c5a98..7d4f595 100644
--- a/openbsc/src/gsm_04_08.c
+++ b/openbsc/src/gsm_04_08.c
@@ -2927,9 +2927,10 @@
 			}
 			/* store setup informations until paging was successfull */
 			memcpy(&trans->cc.msg, data, sizeof(struct gsm_mncc));
-			/* Trigger paging */
-			paging_request(net, subscr, RSL_CHANNEED_TCH_F,
-					setup_trig_pag_evt, subscr);
+
+			/* Get a channel */
+			subscr_get_channel(subscr, RSL_CHANNEED_TCH_F, setup_trig_pag_evt, subscr);
+
 			subscr_put(subscr);
 			return 0;
 		}