On Tue, 21 Feb 2017, Gustavo A. R. Silva wrote:
> Code refactoring to make the flow easier to follow and add missing
> 'continue' for case USB_ENDPOINT_XFER_INT.
>
> Addresses-Coverity-ID: 1248733
> Cc: Alan Stern <st...@rowland.harvard.edu>
> Signed-off-by: Gustavo A. R. Silva <garsi...@embeddedor.com>
> ---
> drivers/usb/misc/usbtest.c | 50
> +++++++++++++++++++++++++++-------------------
> 1 file changed, 30 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
> index 3525626..8723e33 100644
> --- a/drivers/usb/misc/usbtest.c
> +++ b/drivers/usb/misc/usbtest.c
> @@ -124,6 +124,32 @@ static struct usb_device *testdev_to_usbdev(struct
> usbtest_dev *test)
>
> /*-------------------------------------------------------------------------*/
>
> +static inline void try_intr(struct usb_host_endpoint *e,
> + struct usb_host_endpoint *int_in,
> + struct usb_host_endpoint *int_out)
> +{
> + if (usb_endpoint_dir_in(&e->desc)) {
> + if (!int_in)
> + int_in = e;
> + } else {
> + if (!int_out)
> + int_out = e;
> + }
> +}
> +
> +static inline void try_iso(struct usb_host_endpoint *e,
> + struct usb_host_endpoint *iso_in,
> + struct usb_host_endpoint *iso_out)
> +{
> + if (usb_endpoint_dir_in(&e->desc)) {
> + if (!iso_in)
> + iso_in = e;
> + } else {
> + if (!iso_out)
> + iso_out = e;
> + }
> +}
> +
This is not at all what I had in mind. First, it's incorrect (can you
see why?). Second, by "inline" I meant moving the code to be actually
in-line next to the conditional, not some place else in a separate
subroutine (even if the subroutine is declared inline).
Also, the code for the USB_ENDPOINT_XFER_BULK case should look like the
other two.
Alan Stern
