1 files changed, 23 insertions, 13 deletions

diff --git a/drivers/usb/gadget/legacy/zero.c b/drivers/usb/gadget/legacy/zero.c
index 6e84b44c8a3b..08a21bd0c2ba 100644
--- a/drivers/usb/gadget/legacy/zero.c
+++ b/drivers/usb/gadget/legacy/zero.c
@@ -11,8 +11,8 @@
  * can write a hardware-agnostic gadget driver running inside a USB device.
  * Some hardware details are visible, but don't affect most of the driver.
  *
- * Use it with the Linux host/master side "usbtest" driver to get a basic
- * functional test of your device-side usb stack, or with "usb-skeleton".
+ * Use it with the Linux host side "usbtest" driver to get a basic functional
+ * test of your device-side usb stack, or with "usb-skeleton".
  *
  * It supports two similar configurations.  One sinks whatever the usb host
  * writes, and in return sources zeroes.  The other loops whatever the host
@@ -147,6 +147,12 @@ static struct usb_gadget_strings *dev_strings[] = {
 	NULL,
 };
 
+static struct usb_function *func_lb;
+static struct usb_function_instance *func_inst_lb;
+
+static struct usb_function *func_ss;
+static struct usb_function_instance *func_inst_ss;
+
 /*-------------------------------------------------------------------------*/
 
 static struct timer_list	autoresume_timer;
@@ -156,6 +162,7 @@ static void zero_autoresume(struct timer_list *unused)
 {
 	struct usb_composite_dev	*cdev = autoresume_cdev;
 	struct usb_gadget		*g = cdev->gadget;
+	int				status;
 
 	/* unconfigured devices can't issue wakeups */
 	if (!cdev->config)
@@ -165,10 +172,18 @@ static void zero_autoresume(struct timer_list *unused)
 	 * more significant than just a timer firing; likely
 	 * because of some direct user request.
 	 */
-	if (g->speed != USB_SPEED_UNKNOWN) {
-		int status = usb_gadget_wakeup(g);
-		INFO(cdev, "%s --> %d\n", __func__, status);
+	if (g->speed == USB_SPEED_UNKNOWN)
+		return;
+
+	if (g->speed >= USB_SPEED_SUPER) {
+		if (loopdefault)
+			status = usb_func_wakeup(func_lb);
+		else
+			status = usb_func_wakeup(func_ss);
+	} else {
+		status = usb_gadget_wakeup(g);
 	}
+	INFO(cdev, "%s --> %d\n", __func__, status);
 }
 
 static void zero_suspend(struct usb_composite_dev *cdev)
@@ -194,7 +209,7 @@ static void zero_suspend(struct usb_composite_dev *cdev)
 static void zero_resume(struct usb_composite_dev *cdev)
 {
 	DBG(cdev, "%s\n", __func__);
-	del_timer(&autoresume_timer);
+	timer_delete(&autoresume_timer);
 }
 
 /*-------------------------------------------------------------------------*/
@@ -206,9 +221,6 @@ static struct usb_configuration loopback_driver = {
 	/* .iConfiguration = DYNAMIC */
 };
 
-static struct usb_function *func_ss;
-static struct usb_function_instance *func_inst_ss;
-
 static int ss_config_setup(struct usb_configuration *c,
 		const struct usb_ctrlrequest *ctrl)
 {
@@ -248,9 +260,6 @@ module_param_named(isoc_maxburst, gzero_options.isoc_maxburst, uint,
 		S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(isoc_maxburst, "0 - 15 (ss only)");
 
-static struct usb_function *func_lb;
-static struct usb_function_instance *func_inst_lb;
-
 module_param_named(qlen, gzero_options.qlen, uint, S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(qlen, "depth of loopback queue");
 
@@ -398,7 +407,7 @@ err_put_func_inst_ss:
 
 static int zero_unbind(struct usb_composite_dev *cdev)
 {
-	del_timer_sync(&autoresume_timer);
+	timer_delete_sync(&autoresume_timer);
 	if (!IS_ERR_OR_NULL(func_ss))
 		usb_put_function(func_ss);
 	usb_put_function_instance(func_inst_ss);
@@ -425,4 +434,5 @@ static struct usb_composite_driver zero_driver = {
 module_usb_composite_driver(zero_driver);
 
 MODULE_AUTHOR("David Brownell");
+MODULE_DESCRIPTION("Gadget Zero, for USB development");
 MODULE_LICENSE("GPL");