On Mon, Jul 19, 2021 at 02:58:58PM +0200, Cornelia Huck wrote:
> > - ret = device->ops->open(device);
> > - if (ret) {
> > - module_put(device->dev->driver->owner);
> > - vfio_device_put(device);
> > - return ret;
> > + mutex_lock(&device->dev_set->lock);
> > + device->open_count++;
> > + if (device->open_count == 1 && device->ops->open_device) {
> > + ret = device->ops->open_device(device);
> > + if (ret)
> > + goto err_undo_count;
>
> Won't that fail for mdev devices, until the patches later in this series
> have been applied? (i.e. bad for bisect)
What are you seeing? At this point all devices will have a NULL
open_device and skip this logic?
Jason
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