On Mon, 2013-11-11 at 11:08 +0800, wangbiao wrote:
> From: wang, biao
> Date: Mon, 11 Nov 2013 10:23:40 +0800
> Subject: [PATCH] usbnet: fix race condition caused spinlock bad magic issue
>
> there is race between usbnet_terminate_urbs and usbnet_bh, when
> unlink_wakeup use
* wangbiao wrote:
> @@ -1448,8 +1448,10 @@ static void usbnet_bh (unsigned long param)
>
> // waiting for all pending urbs to complete?
> if (dev->wait) {
> + wait_queue_head_t *wait_d = dev->wait;
> if ((dev->txq.qlen + dev->rxq.qlen + dev->done.qlen) ==
From: wang, biao
Date: Mon, 11 Nov 2013 10:23:40 +0800
Subject: [PATCH] usbnet: fix race condition caused spinlock bad magic issue
there is race between usbnet_terminate_urbs and usbnet_bh, when
unlink_wakeup used in usbnet_bh, it may be already freed and used by
other function as unlink_wakeup
