6 files changed, 29 insertions, 11 deletions
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index ebe27595c4af..318bb3b96687 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -210,7 +210,7 @@ static void usbdev_vm_close(struct vm_area_struct *vma)
 	dec_usb_memory_use_count(usbm, &usbm->vma_use_count);
 }
 
-static struct vm_operations_struct usbdev_vm_ops = {
+static const struct vm_operations_struct usbdev_vm_ops = {
 	.open = usbdev_vm_open,
 	.close = usbdev_vm_close
 };
@@ -623,6 +623,8 @@ static void async_completed(struct urb *urb)
 	if (as->status < 0 && as->bulk_addr && as->status != -ECONNRESET &&
 			as->status != -ENOENT)
 		cancel_bulk_urbs(ps, as->bulk_addr);
+
+	wake_up(&ps->wait);
 	spin_unlock(&ps->lock);
 
 	if (signr) {
@@ -630,8 +632,6 @@ static void async_completed(struct urb *urb)
 		put_pid(pid);
 		put_cred(cred);
 	}
-
-	wake_up(&ps->wait);
 }
 
 static void destroy_async(struct usb_dev_state *ps, struct list_head *list)
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 7f277b092b5b..75ad6718858c 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -972,7 +972,7 @@ static struct attribute *usb_bus_attrs[] = {
 		NULL,
 };
 
-static struct attribute_group usb_bus_attr_group = {
+static const struct attribute_group usb_bus_attr_group = {
 	.name = NULL,	/* we want them in the same directory */
 	.attrs = usb_bus_attrs,
 };
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 822f8c50e423..41eaf0b52518 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2614,7 +2614,7 @@ static unsigned hub_is_wusb(struct usb_hub *hub)
 #define SET_CONFIG_TRIES	(2 * (use_both_schemes + 1))
 #define USE_NEW_SCHEME(i)	((i) / 2 == (int)old_scheme_first)
 
-#define HUB_ROOT_RESET_TIME	50	/* times are in msec */
+#define HUB_ROOT_RESET_TIME	60	/* times are in msec */
 #define HUB_SHORT_RESET_TIME	10
 #define HUB_BH_RESET_TIME	50
 #define HUB_LONG_RESET_TIME	200
@@ -4342,6 +4342,7 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
 	enum usb_device_speed	oldspeed = udev->speed;
 	const char		*speed;
 	int			devnum = udev->devnum;
+	const char		*driver_name;
 
 	/* root hub ports have a slightly longer reset period
 	 * (from USB 2.0 spec, section 7.1.7.5)
@@ -4409,11 +4410,23 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
 	else
 		speed = usb_speed_string(udev->speed);
 
+	/*
+	 * The controller driver may be NULL if the controller device
+	 * is the middle device between platform device and roothub.
+	 * This middle device may not need a device driver due to
+	 * all hardware control can be at platform device driver, this
+	 * platform device is usually a dual-role USB controller device.
+	 */
+	if (udev->bus->controller->driver)
+		driver_name = udev->bus->controller->driver->name;
+	else
+		driver_name = udev->bus->sysdev->driver->name;
+
 	if (udev->speed < USB_SPEED_SUPER)
 		dev_info(&udev->dev,
 				"%s %s USB device number %d using %s\n",
 				(udev->config) ? "reset" : "new", speed,
-				devnum, udev->bus->controller->driver->name);
+				devnum, driver_name);
 
 	/* Set up TT records, if needed  */
 	if (hdev->tt) {
@@ -4545,7 +4558,7 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
 						"%s SuperSpeed%s USB device number %d using %s\n",
 						(udev->config) ? "reset" : "new",
 					 (udev->speed == USB_SPEED_SUPER_PLUS) ? "Plus" : "",
-						devnum, udev->bus->controller->driver->name);
+					 devnum, driver_name);
 			}
 
 			/* cope with hardware quirkiness:
diff --git a/drivers/usb/core/ledtrig-usbport.c b/drivers/usb/core/ledtrig-usbport.c
index 16c19a31dad1..1af877942110 100644
--- a/drivers/usb/core/ledtrig-usbport.c
+++ b/drivers/usb/core/ledtrig-usbport.c
@@ -149,8 +149,8 @@ static bool usbport_trig_port_observed(struct usbport_trig_data *usbport_data,
 	count = of_count_phandle_with_args(led_np, "trigger-sources",
 					   "#trigger-source-cells");
 	if (count < 0) {
-		dev_warn(dev, "Failed to get trigger sources for %s\n",
-			 led_np->full_name);
+		dev_warn(dev, "Failed to get trigger sources for %pOF\n",
+			 led_np);
 		return false;
 	}
 
@@ -205,6 +205,7 @@ static int usbport_trig_add_port(struct usbport_trig_data *usbport_data,
 	}
 	snprintf(port->port_name, len, "%s-port%d", hub_name, portnum);
 
+	sysfs_attr_init(&port->attr.attr);
 	port->attr.attr.name = port->port_name;
 	port->attr.attr.mode = S_IRUSR | S_IWUSR;
 	port->attr.show = usbport_trig_port_show;
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 574da2b4529c..82806e311202 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -57,8 +57,9 @@ static const struct usb_device_id usb_quirk_list[] = {
 	/* Microsoft LifeCam-VX700 v2.0 */
 	{ USB_DEVICE(0x045e, 0x0770), .driver_info = USB_QUIRK_RESET_RESUME },
 
-	/* Logitech HD Pro Webcams C920 and C930e */
+	/* Logitech HD Pro Webcams C920, C920-C and C930e */
 	{ USB_DEVICE(0x046d, 0x082d), .driver_info = USB_QUIRK_DELAY_INIT },
+	{ USB_DEVICE(0x046d, 0x0841), .driver_info = USB_QUIRK_DELAY_INIT },
 	{ USB_DEVICE(0x046d, 0x0843), .driver_info = USB_QUIRK_DELAY_INIT },
 
 	/* Logitech ConferenceCam CC3000e */
@@ -217,6 +218,9 @@ static const struct usb_device_id usb_quirk_list[] = {
 	{ USB_DEVICE(0x1a0a, 0x0200), .driver_info =
 			USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
 
+	/* Corsair Strafe RGB */
+	{ USB_DEVICE(0x1b1c, 0x1b20), .driver_info = USB_QUIRK_DELAY_INIT },
+
 	/* Acer C120 LED Projector */
 	{ USB_DEVICE(0x1de1, 0xc102), .driver_info = USB_QUIRK_NO_LPM },
 
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index dfc68ed24db1..d930bfda4010 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -113,7 +113,7 @@ static ssize_t devspec_show(struct device *dev, struct device_attribute *attr,
 {
 	struct device_node *of_node = dev->of_node;
 
-	return sprintf(buf, "%s\n", of_node_full_name(of_node));
+	return sprintf(buf, "%pOF\n", of_node);
 }
 static DEVICE_ATTR_RO(devspec);
 #endif