From 7fefe6a88494b00b151b5ca7bb84daaa781bbca7 Mon Sep 17 00:00:00 2001
From: Vincent CUISSARD <vincent.cuissard@gmail.com>
Date: Thu, 16 Jul 2009 06:08:58 +0000
Subject: cdc-eem: bad crc checking

When the driver received an EEM packet with CRC option enabled, driver must
compute and check the CRC of the Ethernet data. Previous version computes CRC
on Ethernet data plus the original CRC value. Skbuff is correctly trimed but
the old length is used when CRC is computed.

Signed-off-by: Vincent CUISSARD <vincent.cuissard@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/cdc_eem.c b/drivers/net/usb/cdc_eem.c
index cd35d50..45cebfb 100644
--- a/drivers/net/usb/cdc_eem.c
+++ b/drivers/net/usb/cdc_eem.c
@@ -311,7 +311,7 @@ static int eem_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 			 *	bmCRC = 0	: CRC = 0xDEADBEEF
 			 */
 			if (header & BIT(14))
-				crc2 = ~crc32_le(~0, skb2->data, len);
+				crc2 = ~crc32_le(~0, skb2->data, skb2->len);
 			else
 				crc2 = 0xdeadbeef;
 
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