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path: root/drivers/usb/misc/appledisplay.c
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Diffstat (limited to 'drivers/usb/misc/appledisplay.c')
-rw-r--r--drivers/usb/misc/appledisplay.c19
1 files changed, 6 insertions, 13 deletions
diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c
index da5ff401a354..8efdc500e790 100644
--- a/drivers/usb/misc/appledisplay.c
+++ b/drivers/usb/misc/appledisplay.c
@@ -212,28 +212,21 @@ static int appledisplay_probe(struct usb_interface *iface,
struct backlight_properties props;
struct appledisplay *pdata;
struct usb_device *udev = interface_to_usbdev(iface);
- struct usb_host_interface *iface_desc;
struct usb_endpoint_descriptor *endpoint;
int int_in_endpointAddr = 0;
- int i, retval = -ENOMEM, brightness;
+ int retval, brightness;
char bl_name[20];
/* set up the endpoint information */
/* use only the first interrupt-in endpoint */
- iface_desc = iface->cur_altsetting;
- for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
- endpoint = &iface_desc->endpoint[i].desc;
- if (!int_in_endpointAddr && usb_endpoint_is_int_in(endpoint)) {
- /* we found an interrupt in endpoint */
- int_in_endpointAddr = endpoint->bEndpointAddress;
- break;
- }
- }
- if (!int_in_endpointAddr) {
+ retval = usb_find_int_in_endpoint(iface->cur_altsetting, &endpoint);
+ if (retval) {
dev_err(&iface->dev, "Could not find int-in endpoint\n");
- return -EIO;
+ return retval;
}
+ int_in_endpointAddr = endpoint->bEndpointAddress;
+
/* allocate memory for our device state and initialize it */
pdata = kzalloc(sizeof(struct appledisplay), GFP_KERNEL);
if (!pdata) {