From eff0d77da1c12c301d7e968c4b0ae83c14f6d108 Mon Sep 17 00:00:00 2001
From: Alok Kumar <alokkuma@codeaurora.org>
Date: Fri, 9 Feb 2018 16:01:06 +0530
Subject: [PATCH] qcacld-3.0: Prevent null pointer dereference issue

Add null check for pdev after cds_get_context, while
retrieving the context maintained by CDS

Change-Id: I2d6de7d5ad2a46139b2594cf966f2c083c9bb4b4
CRs-Fixed: 2187396
---
 core/hdd/src/wlan_hdd_ipa.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/core/hdd/src/wlan_hdd_ipa.c b/core/hdd/src/wlan_hdd_ipa.c
index dcc421d5f5c7..48c67d6f97bc 100644
--- a/core/hdd/src/wlan_hdd_ipa.c
+++ b/core/hdd/src/wlan_hdd_ipa.c
@@ -2650,6 +2650,11 @@ static void hdd_ipa_uc_op_cb(struct op_msg_type *op_msg, void *usr_ctxt)
 	struct ol_txrx_pdev_t *pdev = cds_get_context(QDF_MODULE_ID_TXRX);
 	QDF_STATUS status = QDF_STATUS_SUCCESS;
 
+	if (!pdev) {
+		HDD_IPA_LOG(QDF_TRACE_LEVEL_FATAL, "pdev is NULL");
+		return;
+	}
+
 	if (!op_msg || !usr_ctxt) {
 		HDD_IPA_LOG(QDF_TRACE_LEVEL_ERROR, "INVALID ARG");
 		return;