Merge tag 'usb-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here is the big USB patchset for 4.12-rc1.

  Lots of good stuff here, after many many many attempts, the kernel
  finally has a working typeC interface, many thanks to Heikki and
  Guenter and others who have taken the time to get this merged. It
  wasn't an easy path for them at all.

  There's also a staging driver that uses this new api, which is why
  it's coming in through this tree.

  Along with that, there's the usual huge number of changes for gadget
  drivers, xhci, and other stuff. Johan also finally refactored pretty
  much every driver that was looking at USB endpoints to do it in a
  common way, which will help prevent any "badly-formed" devices from
  causing problems in drivers. That too wasn't a simple task.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (263 commits)
  staging: typec: Fairchild FUSB302 Type-c chip driver
  staging: typec: Type-C Port Controller Interface driver (tcpci)
  staging: typec: USB Type-C Port Manager (tcpm)
  usb: host: xhci: remove #ifdef around PM functions
  usb: musb: don't mark of_dev_auxdata as initdata
  usb: misc: legousbtower: Fix buffers on stack
  USB: Revert "cdc-wdm: fix "out-of-sync" due to missing notifications"
  usb: Make sure usb/phy/of gets built-in
  USB: storage: e-mail update in drivers/usb/storage/unusual_devs.h
  usb: host: xhci: print correct command ring address
  usb: host: xhci: delete sp_dma_buffers for scratchpad
  usb: host: xhci: using correct specification chapter reference for DCBAAP
  xhci: switch to pci_alloc_irq_vectors
  usb: host: xhci-plat: set resume_quirk() for R-Car controllers
  usb: host: xhci-plat: add resume_quirk()
  usb: host: xhci-plat: enable clk in resume timing
  usb: host: plat: Enable xHCI plat runtime PM
  USB: serial: ftdi_sio: add device ID for Microsemi/Arrow SF2PLUS Dev Kit
  USB: serial: constify static arrays
  usb: fix some references for /proc/bus/usb
  ...

1 files changed, 5 insertions, 17 deletions

diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c
index 030390f37b0a..18fc992a245f 100644
--- a/drivers/usb/serial/iuu_phoenix.c
+++ b/drivers/usb/serial/iuu_phoenix.c
@@ -68,16 +68,6 @@ struct iuu_private {
 	u32 clk;
 };
 
-static int iuu_attach(struct usb_serial *serial)
-{
-	unsigned char num_ports = serial->num_ports;
-
-	if (serial->num_bulk_in < num_ports || serial->num_bulk_out < num_ports)
-		return -ENODEV;
-
-	return 0;
-}
-
 static int iuu_port_probe(struct usb_serial_port *port)
 {
 	struct iuu_private *priv;
@@ -598,9 +588,8 @@ static void read_buf_callback(struct urb *urb)
 	}
 
 	dev_dbg(&port->dev, "%s - %i chars to write\n", __func__, urb->actual_length);
-	if (data == NULL)
-		dev_dbg(&port->dev, "%s - data is NULL !!!\n", __func__);
-	if (urb->actual_length && data) {
+
+	if (urb->actual_length) {
 		tty_insert_flip_string(&port->port, data, urb->actual_length);
 		tty_flip_buffer_push(&port->port);
 	}
@@ -665,10 +654,8 @@ static void iuu_uart_read_callback(struct urb *urb)
 		/* error stop all */
 		return;
 	}
-	if (data == NULL)
-		dev_dbg(&port->dev, "%s - data is NULL !!!\n", __func__);
 
-	if (urb->actual_length == 1  && data != NULL)
+	if (urb->actual_length == 1)
 		len = (int) data[0];
 
 	if (urb->actual_length > 1) {
@@ -1183,6 +1170,8 @@ static struct usb_serial_driver iuu_device = {
 		   },
 	.id_table = id_table,
 	.num_ports = 1,
+	.num_bulk_in = 1,
+	.num_bulk_out = 1,
 	.bulk_in_size = 512,
 	.bulk_out_size = 512,
 	.open = iuu_open,
@@ -1193,7 +1182,6 @@ static struct usb_serial_driver iuu_device = {
 	.tiocmset = iuu_tiocmset,
 	.set_termios = iuu_set_termios,
 	.init_termios = iuu_init_termios,
-	.attach = iuu_attach,
 	.port_probe = iuu_port_probe,
 	.port_remove = iuu_port_remove,
 };