From: Michael Buesch <mb@bu3sch.de>
Date: Tue, 24 Jun 2008 10:22:05 +0000 (+0200)
Subject: b43: Fix PIO skb clobber
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=14a7dd6f6c1e0b361a37b6df52d4dc2ea36757d2;p=linux-beck.git

b43: Fix PIO skb clobber

This fixes a clobber of the skb that was introduced by the
tx_control->cb conversion patches.
This bug causes a crash when the skb destructor is invoked. That happens
on skb_orphan or skb_kfree.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/b43/pio.c b/drivers/net/wireless/b43/pio.c
index 8b1555d95f1c..401591267592 100644
--- a/drivers/net/wireless/b43/pio.c
+++ b/drivers/net/wireless/b43/pio.c
@@ -586,7 +586,7 @@ void b43_pio_handle_txstatus(struct b43_wldev *dev,
 
 	spin_lock(&q->lock); /* IRQs are already disabled. */
 
-	info = (void *)pack->skb;
+	info = IEEE80211_SKB_CB(pack->skb);
 	memset(&info->status, 0, sizeof(info->status));
 
 	b43_fill_txstatus_report(info, status);