add led

hc

2024-05-10 10ebd8556b7990499c896a550e3d416b444211e6

 kernel/drivers/usb/core/hcd.c
..
..
@@ -982,6 +982,7 @@
982
982
 {
983
983
 	struct device *parent_dev = hcd->self.controller;
984
984
 	struct usb_device *usb_dev = hcd->self.root_hub;
985
+	struct usb_device_descriptor *descr;
985
986
 	const int devnum = 1;
986
987
 	int retval;
987
988
 
..
..
@@ -993,13 +994,16 @@
993
994
 	mutex_lock(&usb_bus_idr_lock);
994
995
 
995
996
 	usb_dev->ep0.desc.wMaxPacketSize = cpu_to_le16(64);
996
-	retval = usb_get_device_descriptor(usb_dev, USB_DT_DEVICE_SIZE);
997
-	if (retval != sizeof usb_dev->descriptor) {
997
+	descr = usb_get_device_descriptor(usb_dev);
998
+	if (IS_ERR(descr)) {
999
+		retval = PTR_ERR(descr);
998
1000
 		mutex_unlock(&usb_bus_idr_lock);
999
1001
 		dev_dbg (parent_dev, "can't read %s device descriptor %d\n",
1000
1002
 				dev_name(&usb_dev->dev), retval);
1001
-		return (retval < 0) ? retval : -EMSGSIZE;
1003
+		return retval;
1002
1004
 	}
1005
+	usb_dev->descriptor = *descr;
1006
+	kfree(descr);
1003
1007
 
1004
1008
 	if (le16_to_cpu(usb_dev->descriptor.bcdUSB) >= 0x0201) {
1005
1009
 		retval = usb_get_bos_descriptor(usb_dev);