usbnet.c (3d04d42312eacc68fbcddea337f7eb34bc035dfb) usbnet.c (0956a8c20b23d429e79ff86d4325583fc06f9eb4)
1/*
2 * USB Network driver infrastructure
3 * Copyright (C) 2000-2005 by David Brownell
4 * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or

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584 skb_queue_walk_safe(q, skb, skbnext) {
585 struct skb_data *entry;
586 struct urb *urb;
587 int retval;
588
589 entry = (struct skb_data *) skb->cb;
590 urb = entry->urb;
591
1/*
2 * USB Network driver infrastructure
3 * Copyright (C) 2000-2005 by David Brownell
4 * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or

--- 575 unchanged lines hidden (view full) ---

584 skb_queue_walk_safe(q, skb, skbnext) {
585 struct skb_data *entry;
586 struct urb *urb;
587 int retval;
588
589 entry = (struct skb_data *) skb->cb;
590 urb = entry->urb;
591
592 /*
593 * Get reference count of the URB to avoid it to be
594 * freed during usb_unlink_urb, which may trigger
595 * use-after-free problem inside usb_unlink_urb since
596 * usb_unlink_urb is always racing with .complete
597 * handler(include defer_bh).
598 */
599 usb_get_urb(urb);
592 spin_unlock_irqrestore(&q->lock, flags);
593 // during some PM-driven resume scenarios,
594 // these (async) unlinks complete immediately
595 retval = usb_unlink_urb (urb);
596 if (retval != -EINPROGRESS && retval != 0)
597 netdev_dbg(dev->net, "unlink urb err, %d\n", retval);
598 else
599 count++;
600 spin_unlock_irqrestore(&q->lock, flags);
601 // during some PM-driven resume scenarios,
602 // these (async) unlinks complete immediately
603 retval = usb_unlink_urb (urb);
604 if (retval != -EINPROGRESS && retval != 0)
605 netdev_dbg(dev->net, "unlink urb err, %d\n", retval);
606 else
607 count++;
608 usb_put_urb(urb);
600 spin_lock_irqsave(&q->lock, flags);
601 }
602 spin_unlock_irqrestore (&q->lock, flags);
603 return count;
604}
605
606// Flush all pending rx urbs
607// minidrivers may need to do this when the MTU changes

--- 960 unchanged lines hidden --- 		609 spin_lock_irqsave(&q->lock, flags);
610 }
611 spin_unlock_irqrestore (&q->lock, flags);
612 return count;
613}
614
615// Flush all pending rx urbs
616// minidrivers may need to do this when the MTU changes

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