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usbnet: Resubmit interrupt URB if device is open

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Resubmit interrupt URB if device is open.  Use a flag set in
usbnet_open() to determine this state.  Also kill and free
interrupt URB in usbnet_disconnect().

[Rebased off git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git]

Signed-off-by: Paul Stewart <pstew@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Paul Stewart 2011-04-28 05:43:37 +00:00 committed by David S. Miller
parent 7833aa05b8
commit 68972efa65
2 changed files with 9 additions and 0 deletions
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8
drivers/net/usb/usbnet.c
View file

@ -736,6 +736,7 @@ int usbnet_open (struct net_device *net)
}
}
set_bit(EVENT_DEV_OPEN, &dev->flags);
netif_start_queue (net);
netif_info(dev, ifup, dev->net,
"open: enable queueing (rx %d, tx %d) mtu %d %s framing\n",
@ -1259,6 +1260,9 @@ void usbnet_disconnect (struct usb_interface *intf)
if (dev->driver_info->unbind)
dev->driver_info->unbind (dev, intf);
usb_kill_urb(dev->interrupt);
usb_free_urb(dev->interrupt);
free_netdev(net);
usb_put_dev (xdev);
}
@ -1498,6 +1502,10 @@ int usbnet_resume (struct usb_interface *intf)
int retval;
if (!--dev->suspend_count) {
/* resume interrupt URBs */
if (dev->interrupt && test_bit(EVENT_DEV_OPEN, &dev->flags))
usb_submit_urb(dev->interrupt, GFP_NOIO);
spin_lock_irq(&dev->txq.lock);
while ((res = usb_get_from_anchor(&dev->deferred))) {

1
include/linux/usb/usbnet.h
View file

@ -68,6 +68,7 @@ struct usbnet {
# define EVENT_RX_PAUSED 5
# define EVENT_DEV_WAKING 6
# define EVENT_DEV_ASLEEP 7
# define EVENT_DEV_OPEN 8
};
static inline struct usb_driver *driver_of(struct usb_interface *intf)