nat: Fix potential memory leak when reading a message
Spotted while going through the code with Jacob. We could have
leaked the msgb in case of error.
diff --git a/openbsc/src/osmo-bsc_nat/bsc_ussd.c b/openbsc/src/osmo-bsc_nat/bsc_ussd.c
index e0c5c6d..f7753fb 100644
--- a/openbsc/src/osmo-bsc_nat/bsc_ussd.c
+++ b/openbsc/src/osmo-bsc_nat/bsc_ussd.c
@@ -128,6 +128,7 @@
if (ret < 0) {
LOGP(DNAT, LOGL_ERROR, "ignoring IPA response "
"message with malformed TLVs\n");
+ msgb_free(msg);
return ret;
}
if (TLVP_PRESENT(&tvp, IPAC_IDTAG_UNITNAME))