From: Greg KH <gregkh@suse.de>
To: linux-kernel@vger.kernel.org, stable@kernel.org
Cc: Justin Forbes <jmforbes@linuxtx.org>,
Zwane Mwaikambo <zwane@arm.linux.org.uk>,
Theodore Ts'o <tytso@mit.edu>,
Randy Dunlap <rdunlap@xenotime.net>,
Dave Jones <davej@redhat.com>,
Chuck Wolber <chuckw@quantumlinux.com>,
Chris Wedgwood <reviews@ml.cw.f00f.org>,
Michael Krufky <mkrufky@linuxtv.org>,
Chuck Ebbert <cebbert@redhat.com>,
Domenico Andreoli <cavokz@gmail.com>,
torvalds@linux-foundation.org, akpm@linux-foundation.org,
alan@lxorguk.ukuu.org.uk, linux-wireless@vger.kernel.org,
"John W. Linville" <linville@tuxdriver.com>,
Marc Pignat <marc.pignat@hevs.ch>, Daniel Drake <dsd@gentoo.org>
Subject: [patch 16/16] zd1211rw, fix oops when ejecting install media
Date: Wed, 14 Nov 2007 22:41:23 -0800 [thread overview]
Message-ID: <20071115064123.GQ18951@kroah.com> (raw)
In-Reply-To: <20071115063921.GA18827@kroah.com>
-stable review patch. If anyone has any objections, please let us know.
------------------
From: Marc Pignat <marc.pignat@hevs.ch>
patch e0579d576cb894a4cf3c5af04fbf38e8c1281738 in mainline.
The disconnect function can dereference the net_device structure when it
is never allocated. This is the case when ejecting the device installer.
Signed-off-by: Marc Pignat <marc.pignat@hevs.ch>
Acked-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/net/wireless/zd1211rw/zd_usb.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
--- a/drivers/net/wireless/zd1211rw/zd_usb.c
+++ b/drivers/net/wireless/zd1211rw/zd_usb.c
@@ -1041,14 +1041,17 @@ error:
static void disconnect(struct usb_interface *intf)
{
struct net_device *netdev = zd_intf_to_netdev(intf);
- struct zd_mac *mac = zd_netdev_mac(netdev);
- struct zd_usb *usb = &mac->chip.usb;
+ struct zd_mac *mac;
+ struct zd_usb *usb;
/* Either something really bad happened, or we're just dealing with
* a DEVICE_INSTALLER. */
if (netdev == NULL)
return;
+ mac = zd_netdev_mac(netdev);
+ usb = &mac->chip.usb;
+
dev_dbg_f(zd_usb_dev(usb), "\n");
zd_netdev_disconnect(netdev);
--
prev parent reply other threads:[~2007-11-15 6:43 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20071115060353.071060513@mini.kroah.org>
[not found] ` <20071115063921.GA18827@kroah.com>
2007-11-15 6:41 ` [patch 13/16] zd1201: avoid null ptr access of skb->dev Greg KH
2007-11-15 6:41 ` [patch 14/16] ipw2100: send WEXT scan events Greg KH
2007-11-15 6:41 ` [patch 15/16] rtl8187: Fix more frag bit checking, rts duration calc Greg KH
2007-11-15 6:41 ` Greg KH [this message]
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