linux-kernel - [PATCH] mac80211_hwsim: missing NULL check

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Message-id: <1448867812-11089-1-git-send-email-rahul.jain@samsung.com>
Date:	Mon, 30 Nov 2015 12:46:52 +0530
From:	Rahul Jain <rahul.jain@...sung.com>
To:	kvalo@...eaurora.org
Cc:	linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Amit Khatri <amit.khatri@...sung.com>,
	Rahul Jain <rahul.jain@...sung.com>
Subject: [PATCH] mac80211_hwsim: missing NULL check

From: Amit Khatri <amit.khatri@...sung.com>

txrate variable might be NULL and passing inside function
without NULL check.

Signed-off-by: Amit Khatri <amit.khatri@...sung.com>
Signed-off-by: Rahul Jain <rahul.jain@...sung.com>
---
 drivers/net/wireless/mac80211_hwsim.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 194264c..72e4931 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -814,6 +814,9 @@ static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
 	struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
 
+	if (!txrate)
+		return;
+
 	if (!netif_running(hwsim_mon))
 		return;
 
-- 
1.9.1

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