Re: [PATCH v3 2/3] media: uvcvideo: Do not halt the device after disconnect

[Sergey Senozhatsky]

On (23/11/22 16:47), Sergey Senozhatsky wrote:
> Can the following happen?

Consider the following case (when CPU1 experienced a delay, a preemption
or anything):

> CPU0                                            CPU1
>  uvc_disconnect()
> 						uvc_video_stop_streaming()
>  usb_set_intfdata()
>  uvc_unregister_video()
> 
> 						if (!smp_load(&dev->disconnected))
> 
>  smp_store_release(&dev->disconnected, true);
> 
>  kref_put(&dev->ref, uvc_delete);

> 							uvc_video_halt()

That uvc_video_halt() cannot be legal, right?