From 54cc1cf720ed0aa769804a07a7a6b1ccd3b05cd8 Mon Sep 17 00:00:00 2001
From: Yun Park <yunp@codeaurora.org>
Date: Fri, 13 Jan 2017 10:12:31 -0800
Subject: qcacld-3.0: Fix potential NULL dereference in ol_txrx_lro_flush

Pointer 'pdev' returned from call to function cds_get_context may be
NULL and will be dereferenced.
Fix to check if pdev is not NULL before dereferencing it.

Change-Id: I401f2cab852dc85863b7fb1732fbb8950d341756
CRs-Fixed: 1111504
---
 core/dp/txrx/ol_txrx.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/core/dp/txrx/ol_txrx.c b/core/dp/txrx/ol_txrx.c
index bb8b03c4067e..9818dc605a26 100644
--- a/core/dp/txrx/ol_txrx.c
+++ b/core/dp/txrx/ol_txrx.c
@@ -4816,6 +4816,12 @@ static void ol_txrx_lro_flush(void *data)
 	if (qdf_unlikely(!sched_ctx))
 		return;
 
+	if (qdf_unlikely(!pdev)) {
+		QDF_TRACE(QDF_MODULE_ID_TXRX, QDF_TRACE_LEVEL_ERROR,
+			  "Pdev is NULL");
+		return;
+	}
+
 	if (!ol_cfg_is_rx_thread_enabled(pdev->ctrl_pdev)) {
 		ol_txrx_lro_flush_handler(data, NULL, 0);
 	} else {
-- 
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