From af2a8a6c81e2c19a96803c472eace69050a8c85b Mon Sep 17 00:00:00 2001
From: Vadim Yanitskiy <axilirator@gmail.com>
Date: Sat, 7 Sep 2019 00:01:27 +0200
Subject: common/rsl.c: fix possible NULL-pointer dereference

Change-Id: I11a35a8f500fafa7b3c93d2f2244cc4d42f09f1b
Fixes: CID#203810
---
 src/common/rsl.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/common/rsl.c b/src/common/rsl.c
index 056c16d8..c0d43d0e 100644
--- a/src/common/rsl.c
+++ b/src/common/rsl.c
@@ -1745,10 +1745,14 @@ static int rsl_rx_sacch_inf_mod(struct msgb *msg)
 /* 8.5.8 CBCH Load Information */
 int rsl_tx_cbch_load_indication(struct gsm_bts *bts, bool ext_cbch, bool overflow, uint8_t amount)
 {
-	struct gsm_lchan *lchan = gsm_bts_get_cbch(bts);
+	struct gsm_lchan *lchan;
 	struct msgb *msg;
 	uint8_t load_info;
 
+	lchan = gsm_bts_get_cbch(bts);
+	if (!lchan)
+		return -ENODEV;
+
 	msg = rsl_msgb_alloc(sizeof(struct abis_rsl_cchan_hdr));
 	if (!msg)
 		return -ENOMEM;
-- 
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