ranap: Fix msgb leak on decode error paths

Change-Id: I4dcd7efc39c3cde052bbd258e4bdd3d13ccf7467
---
M src/sgsn/gprs_ranap.c
1 file changed, 5 insertions(+), 0 deletions(-)


git pull ssh://gerrit.osmocom.org:29418/osmo-sgsn refs/changes/22/43322/1

diff --git a/src/sgsn/gprs_ranap.c b/src/sgsn/gprs_ranap.c
index 4445235..70b1260 100644
--- a/src/sgsn/gprs_ranap.c
+++ b/src/sgsn/gprs_ranap.c
@@ -379,11 +379,13 @@
 
 	if (ranap_parse_lai(&ra_id, &ies->lai) != 0) {
 		LOGP(DRANAP, LOGL_ERROR, "Failed to parse RANAP LAI IE\n");
+		msgb_free(msg);
 		return -1;
 	}
 
 	if (!(ies->presenceMask & INITIALUE_MESSAGEIES_RANAP_RAC_PRESENT)) {
 		LOGP(DRANAP, LOGL_ERROR, "Rejecting InitialUE msg without RAC IE\n");
+		msgb_free(msg);
 		return -1;
 	}
 
@@ -391,12 +393,14 @@
 	if (ra_id.rac == OSMO_RESERVED_RAC) {
 		LOGP(DRANAP, LOGL_ERROR,
 		     "Rejecting RNC with invalid/internally used RAC 0x%02x\n", ra_id.rac);
+		msgb_free(msg);
 		return -1;
 	}
 
 	if (iu_grnc_id_parse(&rnc_id, &ies->globalRNC_ID) != 0) {
 		LOGP(DRANAP, LOGL_ERROR,
 		     "Failed to parse RANAP Global-RNC-ID IE\n");
+		msgb_free(msg);
 		return -1;
 	}
 
@@ -493,6 +497,7 @@
 	if (ies->presenceMask & DIRECTTRANSFERIES_RANAP_LAI_PRESENT) {
 		if (ranap_parse_lai(&_ra_id, &ies->lai) != 0) {
 			LOGP(DRANAP, LOGL_ERROR, "Failed to parse RANAP LAI IE\n");
+			msgb_free(msg);
 			return -1;
 		}
 		ra_id = &_ra_id;

