From: "John W. Linville" <linville@tuxdriver.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
netdev@vger.kernel.org, linux-wireless@vger.kernel.org,
zairasai@googlemail.com,
"John W. Linville" <linville@tuxdriver.com>
Subject: [PATCH] zd1201: avoid null ptr access of skb->dev
Date: Wed, 17 Oct 2007 17:10:01 -0400 [thread overview]
Message-ID: <1192655401262-git-send-email-linville@tuxdriver.com> (raw)
In-Reply-To: <20071017132740.eebaed9d.akpm@linux-foundation.org>
skb->dev is not set until eth_type_trans is called...
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
drivers/net/wireless/zd1201.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/zd1201.c b/drivers/net/wireless/zd1201.c
index 935b144..d5c0c66 100644
--- a/drivers/net/wireless/zd1201.c
+++ b/drivers/net/wireless/zd1201.c
@@ -327,8 +327,8 @@ static void zd1201_usbrx(struct urb *urb)
memcpy(skb_put(skb, 6), &data[datalen-8], 6);
memcpy(skb_put(skb, 2), &data[datalen-24], 2);
memcpy(skb_put(skb, len), data, len);
- skb->dev->last_rx = jiffies;
skb->protocol = eth_type_trans(skb, zd->dev);
+ skb->dev->last_rx = jiffies;
zd->stats.rx_packets++;
zd->stats.rx_bytes += skb->len;
netif_rx(skb);
@@ -384,8 +384,8 @@ static void zd1201_usbrx(struct urb *urb)
memcpy(skb_put(skb, 2), &data[6], 2);
memcpy(skb_put(skb, len), data+8, len);
}
- skb->dev->last_rx = jiffies;
skb->protocol = eth_type_trans(skb, zd->dev);
+ skb->dev->last_rx = jiffies;
zd->stats.rx_packets++;
zd->stats.rx_bytes += skb->len;
netif_rx(skb);
--
1.5.2.4
next prev parent reply other threads:[~2007-10-17 21:39 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-9179-10286@http.bugzilla.kernel.org/>
2007-10-17 20:27 ` [Bugme-new] [Bug 9179] New: 2.6.23.1 / USB_ZD1201: Kernel panic with zd1201 driver Andrew Morton
2007-10-17 20:46 ` Dan Williams
2007-10-17 22:49 ` Arnaldo Carvalho de Melo
2007-10-17 21:10 ` John W. Linville [this message]
2007-10-26 21:04 [PATCH] Add get_unaligned to ieee80211_get_radiotap_len John W. Linville
2007-10-26 21:04 ` [PATCH] Improve sanity checks on injected packets John W. Linville
2007-10-26 21:04 ` [PATCH] mac80211: filter locally-originated multicast frames John W. Linville
2007-10-26 21:04 ` [PATCH] libertas: fix endianness breakage John W. Linville
2007-10-26 21:04 ` [PATCH] libertas: more " John W. Linville
2007-10-26 21:04 ` [PATCH] ieee80211: fix TKIP QoS bug John W. Linville
2007-10-26 21:04 ` [PATCH] mac80211: reorder association debug output John W. Linville
2007-10-26 21:04 ` [PATCH] mac80211: store channel info in sta_bss_list John W. Linville
2007-10-26 21:04 ` [PATCH] mac80211: store SSID " John W. Linville
2007-10-26 21:04 ` [PATCH] mac80211: honor IW_SCAN_THIS_ESSID in siwscan ioctl John W. Linville
2007-10-26 21:04 ` [PATCH] mac80211: only honor IW_SCAN_THIS_ESSID in STA, IBSS, and AP modes John W. Linville
2007-10-26 21:04 ` [PATCH] mac80211: make ieee802_11_parse_elems return void John W. Linville
2007-10-26 21:04 ` [PATCH] zd1201: avoid null ptr access of skb->dev John W. Linville
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