Merge tag 'usb-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/…

…git/gregkh/usb

Pull more USB updates from Greg KH:
 "Here are a few more straggler patches for USB for 4.8-rc1.

  Most of these are for the usb-serial driver tree.  All of those have
  been in linux-next for a long time, but missed my previous pull
  request to you.

  The remaining change is to fix up a staging tree build error, due to
  some USB gadget driver changes that went in.  I put it in this tree as
  it was for a USB driver and people are reporting the build error on
  your tree.

  All of these have been in linux-next for this week, and longer for the
  usb-serial changes"

* tag 'usb-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  staging: emxx_udc: allow modular build
  USB: serial: use variable for status
  USB: serial: option: add support for Telit LE910 PID 0x1206
  USB: serial: cp210x: use kmemdup
  USB: serial: ti_usb_3410_5052: use functions rather than macros
  USB: serial: ti_usb_3410_5052: remove ti_usb_3410_5052.h
  USB: serial: ti_usb_3410_5052: use __packed
  USB: serial: ti_usb_3410_5052: remove useless comments

drivers/staging/emxx_udc/Kconfig

@@ -1,5 +1,5 @@
 config USB_EMXX
-	bool "EMXX USB Function Device Controller"
+	tristate "EMXX USB Function Device Controller"
  	depends on USB_GADGET && (ARCH_SHMOBILE || (ARM && COMPILE_TEST))
 	help
 	   The Emma Mobile series of SoCs from Renesas Electronics and

drivers/staging/emxx_udc/emxx_udc.c

@@ -15,7 +15,7 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/init.h>
+#include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/delay.h>
 #include <linux/ioport.h>
@@ -39,9 +39,11 @@
 
 #include "emxx_udc.h"
 
+#define	DRIVER_DESC	"EMXX UDC driver"
 #define	DMA_ADDR_INVALID	(~(dma_addr_t)0)
 
 static const char	driver_name[] = "emxx_udc";
+static const char	driver_desc[] = DRIVER_DESC;
 
 /*===========================================================================*/
 /* Prototype */
@@ -3295,6 +3297,28 @@ static void nbu2ss_drv_shutdown(struct platform_device *pdev)
 	_nbu2ss_disable_controller(udc);
 }
 
+/*-------------------------------------------------------------------------*/
+static int nbu2ss_drv_remove(struct platform_device *pdev)
+{
+	struct nbu2ss_udc	*udc;
+	struct nbu2ss_ep	*ep;
+	int	i;
+
+	udc = &udc_controller;
+
+	for (i = 0; i < NUM_ENDPOINTS; i++) {
+		ep = &udc->ep[i];
+		if (ep->virt_buf)
+			dma_free_coherent(NULL, PAGE_SIZE,
+				(void *)ep->virt_buf, ep->phys_buf);
+	}
+
+	/* Interrupt Handler - Release */
+	free_irq(INT_VBUS, udc);
+
+	return 0;
+}
+
 /*-------------------------------------------------------------------------*/
 static int nbu2ss_drv_suspend(struct platform_device *pdev, pm_message_t state)
 {
@@ -3347,12 +3371,16 @@ static int nbu2ss_drv_resume(struct platform_device *pdev)
 static struct platform_driver udc_driver = {
 	.probe		= nbu2ss_drv_probe,
 	.shutdown	= nbu2ss_drv_shutdown,
+	.remove		= nbu2ss_drv_remove,
 	.suspend	= nbu2ss_drv_suspend,
 	.resume		= nbu2ss_drv_resume,
 	.driver		= {
-		.name			= driver_name,
-		.suppress_bind_attrs	= true,
+		.name	= driver_name,
 	},
 };
 
-builtin_platform_driver(udc_driver);
+module_platform_driver(udc_driver);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_AUTHOR("Renesas Electronics Corporation");
+MODULE_LICENSE("GPL");

drivers/usb/serial/cp210x.c

@@ -496,12 +496,10 @@ static int cp210x_write_reg_block(struct usb_serial_port *port, u8 req,
 	void *dmabuf;
 	int result;
 
-	dmabuf = kmalloc(bufsize, GFP_KERNEL);
+	dmabuf = kmemdup(buf, bufsize, GFP_KERNEL);
 	if (!dmabuf)
 		return -ENOMEM;
 
-	memcpy(dmabuf, buf, bufsize);
-
 	result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
 			req, REQTYPE_HOST_TO_INTERFACE, 0,
 			port_priv->bInterfaceNumber, dmabuf, bufsize,

drivers/usb/serial/generic.c

@@ -350,6 +350,7 @@ void usb_serial_generic_read_bulk_callback(struct urb *urb)
 	struct usb_serial_port *port = urb->context;
 	unsigned char *data = urb->transfer_buffer;
 	unsigned long flags;
+	int status = urb->status;
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(port->read_urbs); ++i) {
@@ -360,22 +361,22 @@ void usb_serial_generic_read_bulk_callback(struct urb *urb)
 
 	dev_dbg(&port->dev, "%s - urb %d, len %d\n", __func__, i,
 							urb->actual_length);
-	switch (urb->status) {
+	switch (status) {
 	case 0:
 		break;
 	case -ENOENT:
 	case -ECONNRESET:
 	case -ESHUTDOWN:
 		dev_dbg(&port->dev, "%s - urb stopped: %d\n",
-							__func__, urb->status);
+							__func__, status);
 		return;
 	case -EPIPE:
 		dev_err(&port->dev, "%s - urb stopped: %d\n",
-							__func__, urb->status);
+							__func__, status);
 		return;
 	default:
 		dev_dbg(&port->dev, "%s - nonzero urb status: %d\n",
-							__func__, urb->status);
+							__func__, status);
 		goto resubmit;
 	}
 
@@ -399,6 +400,7 @@ void usb_serial_generic_write_bulk_callback(struct urb *urb)
 {
 	unsigned long flags;
 	struct usb_serial_port *port = urb->context;
+	int status = urb->status;
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(port->write_urbs); ++i) {
@@ -410,22 +412,22 @@ void usb_serial_generic_write_bulk_callback(struct urb *urb)
 	set_bit(i, &port->write_urbs_free);
 	spin_unlock_irqrestore(&port->lock, flags);
 
-	switch (urb->status) {
+	switch (status) {
 	case 0:
 		break;
 	case -ENOENT:
 	case -ECONNRESET:
 	case -ESHUTDOWN:
 		dev_dbg(&port->dev, "%s - urb stopped: %d\n",
-							__func__, urb->status);
+							__func__, status);
 		return;
 	case -EPIPE:
 		dev_err_console(port, "%s - urb stopped: %d\n",
-							__func__, urb->status);
+							__func__, status);
 		return;
 	default:
 		dev_err_console(port, "%s - nonzero urb status: %d\n",
-							__func__, urb->status);
+							__func__, status);
 		goto resubmit;
 	}
 

drivers/usb/serial/option.c

@@ -273,6 +273,7 @@ static void option_instat_callback(struct urb *urb);
 #define TELIT_PRODUCT_LE922_USBCFG5		0x1045
 #define TELIT_PRODUCT_LE920			0x1200
 #define TELIT_PRODUCT_LE910			0x1201
+#define TELIT_PRODUCT_LE910_USBCFG4		0x1206
 
 /* ZTE PRODUCTS */
 #define ZTE_VENDOR_ID				0x19d2
@@ -1198,6 +1199,8 @@ static const struct usb_device_id option_ids[] = {
 		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg0 },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910),
 		.driver_info = (kernel_ulong_t)&telit_le910_blacklist },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910_USBCFG4),
+		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920),
 		.driver_info = (kernel_ulong_t)&telit_le920_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622, 0xff, 0xff, 0xff) }, /* ZTE WCDMA products */