On Mon, Nov 07, 2016 at 09:53:50PM +0300, Eugene Korenevsky wrote:
> Rework smelling code (goto inside compound statement). Perhaps this is
> legacy. Anyway such code is not appropriate for Linux kernel.
>
> Signed-off-by: Eugene Korenevsky <ekorenevsky@xxxxxxxxx>
> ---
> drivers/usb/core/hub.c | 33 ++++++++++++++++-----------------
> 1 file changed, 16 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
> index cbb1467..7a20980 100644
> --- a/drivers/usb/core/hub.c
> +++ b/drivers/usb/core/hub.c
> @@ -1722,10 +1722,23 @@ static void hub_disconnect(struct usb_interface *intf)
> kref_put(&hub->kref, hub_release);
> }
>
> +static int hub_check_descriptor_sanity(struct usb_host_interface *desc)
> +{
> + /* Some hubs have a subclass of 1, which AFAICT according to the */
> + /* specs is not defined, but it works */
> + if (desc->desc.bInterfaceSubClass != 1 &&
> + desc->desc.bInterfaceSubClass != 2)
> + return 0;
> + /* Multiple endpoints? What kind of mutant ninja-hub is this? */
> + if (desc->desc.bNumEndpoints != 1)
> + return 0;
> + /* If it's not an interrupt in endpoint, we'd better punt! */
> + return usb_endpoint_is_int_in(&desc->endpoint[0].desc);
Minor nit, put blank lines after each if statement to make it readable.
thanks,
greg k-h
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