From b72b7979c356f06a85ac1de03e5086b5bf461702 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Wed, 28 Sep 2016 13:20:17 +0300 Subject: [PATCH] media: usbtv: core: make use of new usb_endpoint_maxp_mult() We have introduced a helper to calculate multiplier value from wMaxPacketSize. Start using it. Cc: Mauro Carvalho Chehab Cc: Signed-off-by: Felipe Balbi --- drivers/media/usb/usbtv/usbtv-core.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/media/usb/usbtv/usbtv-core.c b/drivers/media/usb/usbtv/usbtv-core.c index dc76fd41e00f..ceb953be0770 100644 --- a/drivers/media/usb/usbtv/usbtv-core.c +++ b/drivers/media/usb/usbtv/usbtv-core.c @@ -71,6 +71,7 @@ static int usbtv_probe(struct usb_interface *intf, int size; struct device *dev = &intf->dev; struct usbtv *usbtv; + struct usb_host_endpoint *ep; /* Checks that the device is what we think it is. */ if (intf->num_altsetting != 2) @@ -78,10 +79,12 @@ static int usbtv_probe(struct usb_interface *intf, if (intf->altsetting[1].desc.bNumEndpoints != 4) return -ENODEV; + ep = &intf->altsetting[1].endpoint[0]; + /* Packet size is split into 11 bits of base size and count of * extra multiplies of it.*/ - size = usb_endpoint_maxp(&intf->altsetting[1].endpoint[0].desc); - size = (size & 0x07ff) * (((size & 0x1800) >> 11) + 1); + size = usb_endpoint_maxp(&ep->desc); + size = (size & 0x07ff) * usb_endpoint_maxp_mult(&ep->desc); /* Device structure */ usbtv = kzalloc(sizeof(struct usbtv), GFP_KERNEL);