diff --git a/openbsc/src/gprs/gprs_gmm.c b/openbsc/src/gprs/gprs_gmm.c
index 46c4931..7eff33f 100644
--- a/openbsc/src/gprs/gprs_gmm.c
+++ b/openbsc/src/gprs/gprs_gmm.c
@@ -754,7 +754,7 @@
 			  GPRS_ALGO_GEA0, NULL);
 
 	DEBUGPC(DMM, "\n");
-	return ctx ? gsm48_gmm_authorize(ctx, GMM_T3350_MODE_ATT) : 0;
+	return gsm48_gmm_authorize(ctx, GMM_T3350_MODE_ATT);
 
 err_inval:
 	DEBUGPC(DMM, "\n");