From 860c6e6a15c5082e1a1ff1faeb56cdf439380e87 Mon Sep 17 00:00:00 2001
From: Ivan Kuten <ivan.kuten@promwad.com>
Date: Mon, 24 Nov 2008 15:17:54 -0500
Subject: mac80211: fix unaligned access in ieee80211_wep_encrypt_data

Signed-off-by: Ivan Kuten <ivan.kuten@promwad.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 net/mac80211/wep.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'net/mac80211/wep.c')

diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c
index 7bbb98e846a3..7043ddc75498 100644
--- a/net/mac80211/wep.c
+++ b/net/mac80211/wep.c
@@ -17,6 +17,7 @@
 #include <linux/err.h>
 #include <linux/mm.h>
 #include <linux/scatterlist.h>
+#include <asm/unaligned.h>
 
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
@@ -125,10 +126,10 @@ void ieee80211_wep_encrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
 {
 	struct blkcipher_desc desc = { .tfm = tfm };
 	struct scatterlist sg;
-	__le32 *icv;
+	__le32 icv;
 
-	icv = (__le32 *)(data + data_len);
-	*icv = cpu_to_le32(~crc32_le(~0, data, data_len));
+	icv = cpu_to_le32(~crc32_le(~0, data, data_len));
+	put_unaligned(icv, (__le32 *)(data + data_len));
 
 	crypto_blkcipher_setkey(tfm, rc4key, klen);
 	sg_init_one(&sg, data, data_len + WEP_ICV_LEN);
-- 
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