Re: [PATCH 08/11] usb: Add USB subsystem notifications [ver #7]

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Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote:

> > > Unfortunately, I don't know how to fix it and don't have much time to
> > > investigate it right now - and it's something that can be added back later.
> > 
> > The cause of your problem is quite simple:
> > 
> >  static int usbdev_notify(struct notifier_block *self,
> >  			       unsigned long action, void *dev)
> >  {
> >  	switch (action) {
> >  	case USB_DEVICE_ADD:
> > +		post_usb_device_notification(dev, NOTIFY_USB_DEVICE_ADD, 0);
> >  		break;
> >  	case USB_DEVICE_REMOVE:
> > +		post_usb_device_notification(dev, NOTIFY_USB_DEVICE_REMOVE, 0);
> > +		usbdev_remove(dev);
> > +		break;
> > +	case USB_BUS_ADD:
> > +		post_usb_bus_notification(dev, NOTIFY_USB_BUS_ADD, 0);
> > +		break;
> > +	case USB_BUS_REMOVE:
> > +		post_usb_bus_notification(dev, NOTIFY_USB_BUS_REMOVE, 0);
> >  		usbdev_remove(dev);
> >  		break;
> >  	}
> > 
> > The original code had usbdev_remove(dev) under the USB_DEVICE_REMOVE
> > case.  The patch mistakenly moves it, putting it under the
> ------------------------------^^^^^
> 
> Sorry, I should have said "duplicates" it.

Ah, thanks.  I'd already removed the USB bus notifications, so I'll leave them
out for now.

David



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