Re: [Qemu-devel] [PATCH] usb: ohci: fix error return code in servicing td

[Philippe Mathieu-Daudé]

On 02/22/2017 07:56 AM, Li Qiang wrote:
> It should return 1 if an error occurs when reading td.
> This will avoid an infinite loop issue in ohci_service_ed_list.
>
> Signed-off-by: Li Qiang <address@hidden>

Reviewed-by: Philippe Mathieu-Daudé <address@hidden>

> ---
>  hw/usb/hcd-ohci.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/hw/usb/hcd-ohci.c b/hw/usb/hcd-ohci.c
> index 21c93e0..fe8406a 100644
> --- a/hw/usb/hcd-ohci.c
> +++ b/hw/usb/hcd-ohci.c
> @@ -1001,7 +1001,7 @@ static int ohci_service_td(OHCIState *ohci, struct 
> ohci_ed *ed)
>      if (ohci_read_td(ohci, addr, &td)) {
>          trace_usb_ohci_td_read_error(addr);
>          ohci_die(ohci);
> -        return 0;
> +        return 1;
>      }
>
>      dir = OHCI_BM(ed->flags, ED_D);