From: Florin Malita <fmalita@gmail.com>
To: marcelo@kvack.org, linville@redhat.com
Cc: netdev@vger.kernel.org
Subject: [PATCH] libertas: skb dereferenced after netif_rx
Date: Wed, 16 May 2007 17:01:27 -0400 [thread overview]
Message-ID: <464B7127.5080502@gmail.com> (raw)
In libertas_process_rxed_packet() and process_rxed_802_11_packet() the
skb is dereferenced after being passed to netif_rx (called from
libertas_upload_rx_packet). Spotted by Coverity (1658, 1659).
Also, libertas_upload_rx_packet() unconditionally returns 0 so the error
check is dead code - might as well take it out.
Signed-off-by: Florin Malita <fmalita@gmail.com>
---
rx.c | 18 ++++--------------
1 file changed, 4 insertions(+), 14 deletions(-)
diff --git a/drivers/net/wireless/libertas/rx.c b/drivers/net/wireless/libertas/rx.c
index d17924f..5e98055 100644
--- a/drivers/net/wireless/libertas/rx.c
+++ b/drivers/net/wireless/libertas/rx.c
@@ -269,15 +269,11 @@ int libertas_process_rxed_packet(wlan_private * priv, struct sk_buff *skb)
wlan_compute_rssi(priv, p_rx_pd);
lbs_pr_debug(1, "RX Data: size of actual packet = %d\n", skb->len);
- if (libertas_upload_rx_packet(priv, skb)) {
- lbs_pr_debug(1, "RX error: libertas_upload_rx_packet"
- " returns failure\n");
- ret = -1;
- goto done;
- }
priv->stats.rx_bytes += skb->len;
priv->stats.rx_packets++;
+ libertas_upload_rx_packet(priv, skb);
+
ret = 0;
done:
LEAVE();
@@ -438,17 +434,11 @@ static int process_rxed_802_11_packet(wlan_private * priv, struct sk_buff *skb)
wlan_compute_rssi(priv, prxpd);
lbs_pr_debug(1, "RX Data: size of actual packet = %d\n", skb->len);
-
- if (libertas_upload_rx_packet(priv, skb)) {
- lbs_pr_debug(1, "RX error: libertas_upload_rx_packet "
- "returns failure\n");
- ret = -1;
- goto done;
- }
-
priv->stats.rx_bytes += skb->len;
priv->stats.rx_packets++;
+ libertas_upload_rx_packet(priv, skb);
+
ret = 0;
done:
LEAVE();
next reply other threads:[~2007-05-16 21:01 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-16 21:01 Florin Malita [this message]
[not found] ` <464B7127.5080502-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2007-05-18 18:09 ` [PATCH] libertas: skb dereferenced after netif_rx John W. Linville
[not found] ` <20070518180903.GC3492-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
2007-05-18 20:04 ` Florin Malita
2007-05-19 5:23 ` Stephen Hemminger
2007-05-19 5:37 ` Jeff Garzik
2007-05-20 0:56 ` Dan Williams
2007-05-20 1:47 ` Jeff Garzik
[not found] ` <464FA894.8090008-o2qLIJkoznsdnm+yROfE0A@public.gmane.org>
2007-05-20 5:20 ` Stephen Hemminger
2007-05-20 6:36 ` Jeff Garzik
2007-05-20 7:38 ` David Miller
[not found] ` <20070520.003832.59470116.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2007-05-21 14:51 ` Florin Malita
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