From d4fe5f748ff21a6304d40648986d7d278d28151a Mon Sep 17 00:00:00 2001
From: Himanshu Agarwal <himanaga@codeaurora.org>
Date: Mon, 20 Feb 2017 11:28:44 +0530
Subject: [PATCH] qcacld-3.0: Avoid NULL pointer dereferencing of mpdu_buf

Avoid NULL pointer dereferencing of mpdu_buf by putting NULL
check before using it in htt_rx_restitch_mpdu_from_msdus func.

Change-Id: I726891d4fc1f6928cbda911932dbbcd2ec681b63
CRs-Fixed: 2008901
---
 core/dp/htt/htt_rx.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/core/dp/htt/htt_rx.c b/core/dp/htt/htt_rx.c
index 7ae3b1fde40c..2000f14a9391 100644
--- a/core/dp/htt/htt_rx.c
+++ b/core/dp/htt/htt_rx.c
@@ -2223,6 +2223,9 @@ htt_rx_restitch_mpdu_from_msdus(htt_pdev_handle pdev,
 		else
 			mpdu_buf = qdf_nbuf_clone(head_msdu);
 
+		if (!mpdu_buf)
+			goto mpdu_stitch_fail;
+
 		prev_buf = mpdu_buf;
 
 		frag_list_sum_len = 0;