linux-kernel - Re: [PATCH net v2 2/2] r8152: reset device when tx timeout

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 28 Jul 2015 14:14:05 +0200
From:	Oliver Neukum <oneukum@...e.com>
To:	Hayes Wang <hayeswang@...ltek.com>
Cc:	netdev@...r.kernel.org, nic_swsd@...ltek.com,
	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: [PATCH net v2 2/2] r8152: reset device when tx timeout

On Tue, 2015-07-28 at 20:08 +0800, Hayes Wang wrote:
>  static void rtl8152_tx_timeout(struct net_device *netdev)
>  {
>         struct r8152 *tp = netdev_priv(netdev);
> -       int i;
>  
>         netif_warn(tp, tx_err, netdev, "Tx timeout\n");
> -       for (i = 0; i < RTL8152_MAX_TX; i++)
> -               usb_unlink_urb(tp->tx_info[i].urb);
> +
> +       usb_queue_reset_device(tp->intf);
> +       cancel_delayed_work(&tp->schedule);

Sorry to bother you again, but this looks wrong.
You want to cancel first. There is no point in
running any work before the reset is done. It will
undo any progress anyway.

	Regards
		Oliver


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/