On Thu, Jun 02, 2022 at 01:50:24PM +0800, Dongliang Mu wrote:
> From: Dongliang Mu <mudongliangabcd@xxxxxxxxx>
>
> Commit d725d20e81c2 ("media: flexcop-usb: sanity checking of endpoint type
> ") adds a sanity check for endpoint[1], but fails to modify the sanity
> check of bNumEndpoints.
>
> Fix this by modifying the sanity check of bNumEndpoints to 2.
Are you sure that d725d20e81c2 ("media: flexcop-usb: sanity checking of
endpoint type) was correct?
> Fixes: d725d20e81c2 ("media: flexcop-usb: sanity checking of endpoint type")
> Signed-off-by: Dongliang Mu <mudongliangabcd@xxxxxxxxx>
> ---
> drivers/media/usb/b2c2/flexcop-usb.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/media/usb/b2c2/flexcop-usb.c b/drivers/media/usb/b2c2/flexcop-usb.c
> index 7835bb0f32fc..eb54bfdda01f 100644
> --- a/drivers/media/usb/b2c2/flexcop-usb.c
> +++ b/drivers/media/usb/b2c2/flexcop-usb.c
> @@ -509,7 +509,7 @@ static int flexcop_usb_init(struct flexcop_usb *fc_usb)
> return ret;
> }
>
> - if (fc_usb->uintf->cur_altsetting->desc.bNumEndpoints < 1)
> + if (fc_usb->uintf->cur_altsetting->desc.bNumEndpoints < 2)
> return -ENODEV;
> if (!usb_endpoint_is_isoc_in(&fc_usb->uintf->cur_altsetting->endpoint[1].desc))
> return -ENODEV;
It looks like it should have verified the type of endpoint[0] here
instead.
Oliver?
Johan
