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USB: yurex: refactor endpoint retrieval

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Use the new endpoint helpers to lookup the required interrupt-in
endpoint.

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold 2017-03-17 11:35:45 +01:00 committed by Greg Kroah-Hartman
parent 9fdc1c6fdf
commit 499841e678
1 changed files with 5 additions and 11 deletions
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16
drivers/usb/misc/yurex.c
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@ -195,8 +195,8 @@ static int yurex_probe(struct usb_interface *interface, const struct usb_device_
struct usb_host_interface *iface_desc; struct usb_host_interface *iface_desc;
struct usb_endpoint_descriptor *endpoint; struct usb_endpoint_descriptor *endpoint;
int retval = -ENOMEM; int retval = -ENOMEM;
int i;
DEFINE_WAIT(wait); DEFINE_WAIT(wait);
int res;
/* allocate memory for our device state and initialize it */ /* allocate memory for our device state and initialize it */
dev = kzalloc(sizeof(*dev), GFP_KERNEL); dev = kzalloc(sizeof(*dev), GFP_KERNEL);
@ -212,20 +212,14 @@ static int yurex_probe(struct usb_interface *interface, const struct usb_device_
/* set up the endpoint information */ /* set up the endpoint information */
iface_desc = interface->cur_altsetting; iface_desc = interface->cur_altsetting;
for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { res = usb_find_int_in_endpoint(iface_desc, &endpoint);
endpoint = &iface_desc->endpoint[i].desc; if (res) {
if (usb_endpoint_is_int_in(endpoint)) {
dev->int_in_endpointAddr = endpoint->bEndpointAddress;
break;
}
}
if (!dev->int_in_endpointAddr) {
retval = -ENODEV;
dev_err(&interface->dev, "Could not find endpoints\n"); dev_err(&interface->dev, "Could not find endpoints\n");
retval = res;
goto error; goto error;
} }
dev->int_in_endpointAddr = endpoint->bEndpointAddress;
/* allocate control URB */ /* allocate control URB */
dev->cntl_urb = usb_alloc_urb(0, GFP_KERNEL); dev->cntl_urb = usb_alloc_urb(0, GFP_KERNEL);