misc: Fix warnings about returning with value...

return rc in these cases.
diff --git a/openbsc/src/gsm_04_11.c b/openbsc/src/gsm_04_11.c
index f31e3f8..9b3f44e 100644
--- a/openbsc/src/gsm_04_11.c
+++ b/openbsc/src/gsm_04_11.c
@@ -678,6 +678,8 @@
 		trans->sms.cp_state = GSM411_CPS_IDLE;
 		trans_free(trans);
 	}
+
+	return rc;
 }
 
 static int gsm411_tx_cp_error(struct gsm_trans *trans, u_int8_t cause)
diff --git a/openbsc/src/input/ipaccess.c b/openbsc/src/input/ipaccess.c
index 05786da..5c9cd46 100644
--- a/openbsc/src/input/ipaccess.c
+++ b/openbsc/src/input/ipaccess.c
@@ -461,6 +461,7 @@
 	/* Request ID. FIXME: request LOCATION, HW/SW VErsion, Unit Name, Serno */
 	ret = write(bfd->fd, id_req, sizeof(id_req));
 
+        return ret;
 	//return e1inp_line_register(line);
 }
 
@@ -574,6 +575,7 @@
 	
 	line->driver = &ipaccess_driver;
 
+        return ret;
 	//return e1inp_line_register(line);
 }