Commit 8defffb2 authored Sep 07, 2016 by Colin Ian King Committed by Greg Kroah-Hartman Sep 12, 2016

staging: ks7010: avoid dereferencing packet if it is null



Updating tx_bytes from packet->len if packet is null will cause
a null pointer dereference, so only update tx_bytes if it packet
is not null.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent f5dc9399

drivers/staging/ks7010/ks_wlan_net.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -3396,13 +3396,13 @@ void send_packet_complete(void arg1, void arg2)

		DPRINTK(3, "\n");

		priv->nstats.tx_bytes += packet->len;
		priv->nstats.tx_packets++;

		if (netif_queue_stopped(priv->net_dev))
		netif_wake_queue(priv->net_dev);

		if (packet) {
		priv->nstats.tx_bytes += packet->len;
		dev_kfree_skb(packet);
		packet = NULL;
		}