From d0a8b49d51a7f7813d0335e15b21d20bc2c6159f Mon Sep 17 00:00:00 2001
From: Harald Welte <laforge@gnumonks.org>
Date: Sun, 21 Jul 2019 12:50:04 +0200
Subject: [PATCH] gsm411_sms.c: Handle negative return of gsm340_gen_oa()

Change-Id: I36f56e1fbd72d9b31350dc2f8a53e763f79f4c08
Closes: CID#198533
---
 src/host/layer23/src/mobile/gsm411_sms.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/host/layer23/src/mobile/gsm411_sms.c b/src/host/layer23/src/mobile/gsm411_sms.c
index 08df0f28..45decfd9 100644
--- a/src/host/layer23/src/mobile/gsm411_sms.c
+++ b/src/host/layer23/src/mobile/gsm411_sms.c
@@ -579,6 +579,9 @@ static int gsm340_gen_tpdu(struct msgb *msg, struct gsm_sms *sms)
 							sms->address + 1);
 	else
 		da_len = gsm340_gen_oa(da, sizeof(da), 0x0, 0x1, sms->address);
+	if (da_len < 0)
+		return da_len;
+
 	smsp = msgb_put(msg, da_len);
 	memcpy(smsp, da, da_len);
 
-- 
2.11.4.GIT