gprs_gmm: refactor handling of GMM Detach Accept into own function

Change-Id: Iae846bbff0df04295a1579017117b3e84fa29157
---
M src/sgsn/gprs_gmm.c
1 file changed, 9 insertions(+), 3 deletions(-)


git pull ssh://gerrit.osmocom.org:29418/osmo-sgsn refs/changes/00/43600/1

diff --git a/src/sgsn/gprs_gmm.c b/src/sgsn/gprs_gmm.c
index c35d54f..e82bc06 100644
--- a/src/sgsn/gprs_gmm.c
+++ b/src/sgsn/gprs_gmm.c
@@ -1502,6 +1502,14 @@
 	return rc;
 }
 
+/* CHapter 9.4.6: MT Detach Ack */
+static int gsm48_rx_gmm_det_accept(struct sgsn_mm_ctx *ctx, struct msgb *msg)
+{
+	LOGMMCTXP(LOGL_INFO, ctx, "-> DETACH ACK\n");
+	mm_ctx_cleanup_free(ctx, "GMM DETACH ACK");
+	return 0;
+}
+
 /* Chapter 9.4.15: Routing area update accept */
 static int gsm48_tx_gmm_ra_upd_ack(struct sgsn_mm_ctx *mm)
 {
@@ -2100,9 +2108,7 @@
 	case GSM48_MT_GMM_DETACH_ACK:
 		if (!mmctx)
 			goto null_mmctx;
-		LOGMMCTXP(LOGL_INFO, mmctx, "-> DETACH ACK\n");
-		mm_ctx_cleanup_free(mmctx, "GMM DETACH ACK");
-		rc = 0;
+		rc = gsm48_rx_gmm_det_accept(mmctx, msg);
 		break;
 	case GSM48_MT_GMM_ATTACH_COMPL:
 		if (!mmctx)

