From e17a5d9251fc07972dc8ee5d1ca363bc3d07cbad Mon Sep 17 00:00:00 2001
From: Wenxiu Han <wenxhan@codeaurora.org>
Date: Mon, 14 Sep 2020 17:43:55 +0800
Subject: [PATCH] qcacmn: Check null pointer before use

In API hif_batch_send(), the variable ce_tx_hdl is dereferenced in
if_batch_send() without null check. Check for null before use to
avoid dereference a NULL pointer.

Change-Id: I05c38e180a448522d13d68369b77b45314eac227
CRs-Fixed: 2968584
---
 hif/src/hif_main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hif/src/hif_main.c b/hif/src/hif_main.c
index 55723e7895..b5140cc1e5 100644
--- a/hif/src/hif_main.c
+++ b/hif/src/hif_main.c
@@ -1947,6 +1947,9 @@ qdf_nbuf_t hif_batch_send(struct hif_opaque_softc *osc, qdf_nbuf_t msdu,
 {
 	void *ce_tx_hdl = hif_get_ce_handle(osc, CE_HTT_TX_CE);
 
+	if (!ce_tx_hdl)
+		return NULL;
+
 	return ce_batch_send((struct CE_handle *)ce_tx_hdl, msdu, transfer_id,
 			len, sendhead);
 }