Re: [Qemu-devel] [usb] call destroy for usb devices upon removal from guest

[Fabrice Bellard <fabrice@bellard.org>]

Hi,

Calling dev->handle_reset() is redundant with usb_attach(port, NULL) and 
is also incorrect because dev->handle_reset is a private helper for the 
usb devices (the real message is USB_DETACH).

Regards,

Fabrice.

Lonnie Mendez wrote:
> lo list.  I have found the old diff to be incorrect on many levels.  New
> diff has additionally cleanup code for the linux redirector.  Please see
> the attached patch for solution.
> 
> 
> ------------------------------------------------------------------------
> 
> --- qemu/vl.c	2006-07-17 03:16:38.191157512 -0500
> +++ qemu/vl.c	2006-07-17 03:18:13.402683160 -0500
> @@ -3781,6 +3781,7 @@
>  {
>      USBPort *port;
>      USBPort **lastp;
> +    USBDevice *dev;
>      int bus_num, addr;
>      const char *p;
>  
> @@ -3805,8 +3806,10 @@
>      if (!port)
>          return -1;
>  
> +    dev = port->dev;
>      *lastp = port->next;
>      usb_attach(port, NULL);
> +    dev->handle_reset(dev, 1);
>      port->next = free_usb_ports;
>      free_usb_ports = port;
>      return 0;
> --- qemu/usb-linux.c	2006-06-26 16:00:51.000000000 -0500
> +++ qemu/usb-linux.c	2006-07-17 03:32:28.427699600 -0500
> @@ -59,6 +59,14 @@
>  
>  static void usb_host_handle_reset(USBDevice *dev, int destroy)
>  {
> +    USBHostDevice *s = (USBHostDevice *)dev;
> +    
> +    if (destroy) {
> +        if (s->fd >= 0)
> +            close(s->fd);
> +        qemu_free(s);
> +        return;
> +    }
>  #if 0
>      USBHostDevice *s = (USBHostDevice *)dev;
>      /* USBDEVFS_RESET, but not the first time as it has already be
> 
> 
> ------------------------------------------------------------------------
> 
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