Merge kroah.com:/home/greg/linux/BK/bleed-2.5

into kroah.com:/home/greg/linux/BK/gregkh-2.5

CREDITS

@@ -1210,6 +1210,10 @@ S: 25360 Georgia Tech Station
 S: Atlanta, Georgia 30332
 S: USA
 
+N: Brad Hards
+E: bradh@frogmouth.net
+D: Various USB bits, other minor patches
+
 N: Angelo Haritsis
 E: ah@computer.org
 D: kernel patches (serial, watchdog)

MAINTAINERS

@@ -1869,11 +1869,12 @@ S:	Maintained
 W:	http://www.kroah.com/linux-usb/
 
 USB CDC ETHERNET DRIVER
-P:	Brad Hards
-M:	bradh@frogmouth.net
+P:	Greg Kroah-Hartman
+M:	greg@kroah.com
 L:	linux-usb-users@lists.sourceforge.net
 L:	linux-usb-devel@lists.sourceforge.net
 S:	Maintained
+W:	http://www.kroah.com/linux-usb/
 
 USB EHCI DRIVER
 P:	David Brownell

drivers/usb/Makefile

@@ -14,6 +14,7 @@ obj-$(CONFIG_USB_SL811HS)	+= host/
 obj-$(CONFIG_USB_ACM)		+= class/
 obj-$(CONFIG_USB_AUDIO)		+= class/
 obj-$(CONFIG_USB_BLUETOOTH_TTY)	+= class/
+obj-$(CONFIG_USB_MIDI)		+= class/
 obj-$(CONFIG_USB_PRINTER)	+= class/
 
 obj-$(CONFIG_USB_STORAGE)	+= storage/

drivers/usb/class/audio.c

@@ -172,7 +172,6 @@
 
 /*****************************************************************************/
 
-#include <linux/version.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/string.h>

drivers/usb/class/cdc-acm.c

@@ -538,7 +538,7 @@ static int acm_probe (struct usb_interface *intf,
 
 		cfacm = dev->config + i;
 
-		dbg("probing config %d", cfacm->bConfigurationValue);
+		dbg("probing config %d", cfacm->desc.bConfigurationValue);
 
 		if (cfacm->desc.bNumInterfaces != 2 ||
 		    usb_interface_claimed(cfacm->interface + 0) ||

drivers/usb/core/buffer.c

@@ -7,7 +7,6 @@
 
 #include <linux/config.h>
 #include <linux/module.h>
-#include <linux/version.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/pci.h>

drivers/usb/core/hcd.c

@@ -1024,9 +1024,7 @@ static int hcd_submit_urb (struct urb *urb, int mem_flags)
 		 */
 		urb->transfer_flags |= URB_NO_DMA_MAP;
 		status = rh_urb_enqueue (hcd, urb);
-		if (status)
-			urb_unlink (urb);
-		return status;
+		goto done;
 	}
 
 	/* lower level hcd code should use *_dma exclusively,
@@ -1051,8 +1049,11 @@ static int hcd_submit_urb (struct urb *urb, int mem_flags)
 	}
 
 	status = hcd->driver->urb_enqueue (hcd, urb, mem_flags);
-	if (status)
+done:
+	if (status) {
+		usb_put_urb (urb);
 		urb_unlink (urb);
+	}
 	return status;
 }
 

drivers/usb/core/hub.c

@@ -135,8 +135,7 @@ static void hub_irq(struct urb *urb, struct pt_regs *regs)
 
 	default:		/* presumably an error */
 		/* Cause a hub reset after 10 consecutive errors */
-		dbg("hub '%s' status %d for interrupt transfer",
-			urb->dev->devpath, urb->status);
+		dev_dbg (&hub->intf->dev, "transfer --> %d\n", urb->status);
 		if ((++hub->nerrors < 10) || hub->error)
 			goto resubmit;
 		hub->error = urb->status;
@@ -158,10 +157,10 @@ static void hub_irq(struct urb *urb, struct pt_regs *regs)
 	spin_unlock_irqrestore(&hub_event_lock, flags);
 
 resubmit:
-	if ((status = usb_submit_urb (hub->urb, GFP_ATOMIC)) != 0)
-		err ("hub '%s-%s' status %d for interrupt resubmit",
-			urb->dev->bus->bus_name, urb->dev->devpath,
-			status);
+	if ((status = usb_submit_urb (hub->urb, GFP_ATOMIC)) != 0
+			/* ENODEV means we raced disconnect() */
+			&& status != -ENODEV)
+		dev_err (&hub->intf->dev, "resubmit --> %d\n", urb->status);
 }
 
 /* USB 2.0 spec Section 11.24.2.3 */
@@ -648,12 +647,13 @@ static int usb_hub_port_status(struct usb_device *hub, int port,
 	struct usb_port_status *portsts;
 	int ret = -ENOMEM;
 
-	portsts = kmalloc(sizeof(*portsts), GFP_KERNEL);
+	portsts = kmalloc(sizeof(*portsts), GFP_NOIO);
 	if (portsts) {
 		ret = usb_get_port_status(hub, port + 1, portsts);
 		if (ret < 0)
-			err("%s(%s-%s) failed (err = %d)", __FUNCTION__,
-				hub->bus->bus_name, hub->devpath, ret);
+			dev_err (hubdev (hub),
+				"%s failed (err = %d)\n", __FUNCTION__,
+				ret);
 		else {
 			*status = le16_to_cpu(portsts->wPortStatus);
 			*change = le16_to_cpu(portsts->wPortChange); 
@@ -759,8 +759,8 @@ void usb_hub_port_disable(struct usb_device *hub, int port)
 
 	ret = usb_clear_port_feature(hub, port + 1, USB_PORT_FEAT_ENABLE);
 	if (ret)
-		err("cannot disable port %d of hub %s (err = %d)",
-			port + 1, hub->devpath, ret);
+		dev_err(hubdev(hub), "cannot disable port %d (err = %d)\n",
+			port + 1, ret);
 }
 
 /* USB 2.0 spec, 7.1.7.3 / fig 7-29:
@@ -983,12 +983,12 @@ static void usb_hub_events(void)
 		spin_unlock_irqrestore(&hub_event_lock, flags);
 
 		if (hub->error) {
-			dbg("resetting hub %s for error %d",
-				dev->devpath, hub->error);
+			dev_dbg (&hub->intf->dev, "resetting for error %d\n",
+				hub->error);
 
 			if (usb_hub_reset(hub)) {
-				err("error resetting hub %s - disconnecting",
-					dev->devpath);
+				dev_dbg (&hub->intf->dev,
+					"can't reset; disconnecting\n");
 				up(&hub->khubd_sem);
 				usb_hub_disconnect(dev);
 				continue;
@@ -1022,33 +1022,37 @@ static void usb_hub_events(void)
 				if (!(portstatus & USB_PORT_STAT_ENABLE)
 				    && (portstatus & USB_PORT_STAT_CONNECTION)
 				    && (dev->children[i])) {
-					err("already running hub %s port %i "
+					dev_err (&hub->intf->dev,
+					    "port %i "
 					    "disabled by hub (EMI?), "
 					    "re-enabling...",
-						dev->devpath, i + 1);
+						i + 1);
 					usb_hub_port_connect_change(hub,
 						i, portstatus, portchange);
 				}
 			}
 
 			if (portchange & USB_PORT_STAT_C_SUSPEND) {
-				dbg("hub %s port %d suspend change",
-					dev->devpath, i + 1);
+				dev_dbg (&hub->intf->dev,
+					"suspend change on port %d\n",
+					i + 1);
 				usb_clear_port_feature(dev,
 					i + 1,  USB_PORT_FEAT_C_SUSPEND);
 			}
 			
 			if (portchange & USB_PORT_STAT_C_OVERCURRENT) {
-				err("hub %s port %d over-current change",
-					dev->devpath, i + 1);
+				dev_err (&hub->intf->dev,
+					"over-current change on port %d\n",
+					i + 1);
 				usb_clear_port_feature(dev,
 					i + 1, USB_PORT_FEAT_C_OVER_CURRENT);
 				usb_hub_power_on(hub);
 			}
 
 			if (portchange & USB_PORT_STAT_C_RESET) {
-				dbg("hub %s port %d reset change",
-					dev->devpath, i + 1);
+				dev_dbg (&hub->intf->dev,
+					"reset change on port %d\n",
+					i + 1);
 				usb_clear_port_feature(dev,
 					i + 1, USB_PORT_FEAT_C_RESET);
 			}
@@ -1056,16 +1060,16 @@ static void usb_hub_events(void)
 
 		/* deal with hub status changes */
 		if (usb_get_hub_status(dev, &hubsts) < 0)
-			err("get_hub_status %s failed", dev->devpath);
+			dev_err (&hub->intf->dev, "get_hub_status failed\n");
 		else {
 			hubstatus = le16_to_cpup(&hubsts.wHubStatus);
 			hubchange = le16_to_cpup(&hubsts.wHubChange);
 			if (hubchange & HUB_CHANGE_LOCAL_POWER) {
-				dbg("hub %s power change", dev->devpath);
+				dev_dbg (&hub->intf->dev, "power change\n");
 				usb_clear_hub_feature(dev, C_HUB_LOCAL_POWER);
 			}
 			if (hubchange & HUB_CHANGE_OVERCURRENT) {
-				dbg("hub %s overcurrent change", dev->devpath);
+				dev_dbg (&hub->intf->dev, "overcurrent change\n");
 				wait_ms(500);	/* Cool down */
 				usb_clear_hub_feature(dev, C_HUB_OVER_CURRENT);
                         	usb_hub_power_on(hub);

drivers/usb/core/message.c

@@ -7,6 +7,7 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/init.h>
+#include <linux/mm.h>
 #include <asm/byteorder.h>
 
 #include "hcd.h"	/* for usbcore internals */

drivers/usb/core/usb-debug.c

@@ -5,7 +5,6 @@
  * face, but so that you can still use them..
  */
 #include <linux/config.h>
-#include <linux/version.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/slab.h>

drivers/usb/core/usb.c

@@ -866,14 +866,11 @@ void usb_disconnect(struct usb_device **pdev)
 }
 
 /**
- * usb_connect - connects a new device during enumeration (usbcore-internal)
- * @dev: partially enumerated device
- *
- * Connect a new USB device. This basically just initializes
- * the USB device information and sets up the topology - it's
- * up to the low-level driver to reset the port and actually
- * do the setup (the upper levels don't know how to do that).
+ * usb_connect - pick device address (usbcore-internal)
+ * @dev: newly detected device (in DEFAULT state)
  *
+ * Picks a device address.  It's up to the hub (or root hub) driver
+ * to handle and manage enumeration, starting from the DEFAULT state.
  * Only hub drivers (including virtual root hub drivers for host
  * controllers) should ever call this.
  */
@@ -983,7 +980,7 @@ static void set_device_description (struct usb_device *dev)
 }
 
 /*
- * By the time we get here, the device has gotten a new device ID
+ * By the time we get here, we chose a new device address
  * and is in the default state. We need to identify the thing and
  * get the ball rolling..
  *

drivers/usb/host/ohci-hcd.c

@@ -94,7 +94,6 @@
 #include <linux/list.h>
 #include <linux/interrupt.h>  /* for in_interrupt () */
 #include <linux/usb.h>
-#include <linux/version.h>
 #include "../core/hcd.h"
 
 #include <asm/io.h>

drivers/usb/image/mdc800.c

@@ -85,7 +85,6 @@
  * (20/10/1999)
  */
 
-#include <linux/version.h>
 #include <linux/sched.h>
 #include <linux/signal.h>
 #include <linux/spinlock.h>

drivers/usb/media/ov511.c

@@ -36,7 +36,6 @@
  */
 
 #include <linux/config.h>
-#include <linux/version.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/fs.h>

drivers/usb/media/stv680.c

@@ -60,7 +60,6 @@
 
 #include <linux/config.h>
 #include <linux/module.h>
-#include <linux/version.h>
 #include <linux/init.h>
 #include <linux/fs.h>
 #include <linux/vmalloc.h>

drivers/usb/misc/emi26.c

@@ -78,19 +78,28 @@ static int emi26_set_reset (struct usb_device *dev, unsigned char reset_bit)
 	return response;
 }
 
+#define FW_LOAD_SIZE		1023
+
 static int emi26_load_firmware (struct usb_device *dev)
 {
 	int err;
 	int i;
 	int pos = 0;	/* Position in hex record */
 	__u32 addr;	/* Address to write */
-	__u8 buf[1023];
+	__u8 *buf;
+
+	buf = kmalloc(FW_LOAD_SIZE, GFP_KERNEL);
+	if (!buf) {
+		err( "%s - error loading firmware: error = %d", __FUNCTION__, -ENOMEM);
+		err = -ENOMEM;
+		goto wraperr;
+	}
 
 	/* Assert reset (stop the CPU in the EMI) */
 	err = emi26_set_reset(dev,1);
 	if (err < 0) {
 		err( "%s - error loading firmware: error = %d", __FUNCTION__, err);
-		return err;
+		goto wraperr;
 	}
 
 	/* 1. We need to put the loader for the FPGA into the EZ-USB */
@@ -98,7 +107,7 @@ static int emi26_load_firmware (struct usb_device *dev)
 		err = emi26_writememory(dev, g_Loader[i].address, g_Loader[i].data, g_Loader[i].length, ANCHOR_LOAD_INTERNAL);
 		if (err < 0) {
 			err("%s - error loading firmware: error = %d", __FUNCTION__, err);
-			return err;
+			goto wraperr;
 		}
 	}
 
@@ -113,7 +122,7 @@ static int emi26_load_firmware (struct usb_device *dev)
 		addr = g_bitstream[pos].address;
 
 		/* intel hex records are terminated with type 0 element */
-		while ((g_bitstream[pos].type == 0) && (i + g_bitstream[pos].length < sizeof(buf))) {
+		while ((g_bitstream[pos].type == 0) && (i + g_bitstream[pos].length < FW_LOAD_SIZE)) {
 			memcpy(buf + i, g_bitstream[pos].data, g_bitstream[pos].length);
 			i += g_bitstream[pos].length;
 			pos++;
@@ -121,7 +130,7 @@ static int emi26_load_firmware (struct usb_device *dev)
 		err = emi26_writememory(dev, addr, buf, i, ANCHOR_LOAD_FPGA);
 		if (err < 0) {
 			err("%s - error loading firmware: error = %d", __FUNCTION__, err);
-			return err;
+			goto wraperr;
 		}
 	} while (i > 0);
 
@@ -129,7 +138,7 @@ static int emi26_load_firmware (struct usb_device *dev)
 	err = emi26_set_reset(dev,1);
 	if (err < 0) {
 		err("%s - error loading firmware: error = %d", __FUNCTION__, err);
-		return err;
+		goto wraperr;
 	}
 
 	/* 3. We need to put the loader for the firmware into the EZ-USB (again...) */
@@ -137,7 +146,7 @@ static int emi26_load_firmware (struct usb_device *dev)
 		err = emi26_writememory(dev, g_Loader[i].address, g_Loader[i].data, g_Loader[i].length, ANCHOR_LOAD_INTERNAL);
 		if (err < 0) {
 			err("%s - error loading firmware: error = %d", __FUNCTION__, err);
-			return err;
+			goto wraperr;
 		}
 	}
 
@@ -145,7 +154,7 @@ static int emi26_load_firmware (struct usb_device *dev)
 	err = emi26_set_reset(dev,0);
 	if (err < 0) {
 		err("%s - error loading firmware: error = %d", __FUNCTION__, err);
-		return err;
+		goto wraperr;
 	}
 
 	/* 4. We put the part of the firmware that lies in the external RAM into the EZ-USB */
@@ -154,7 +163,7 @@ static int emi26_load_firmware (struct usb_device *dev)
 			err = emi26_writememory(dev, g_Firmware[i].address, g_Firmware[i].data, g_Firmware[i].length, ANCHOR_LOAD_EXTERNAL);
 			if (err < 0) {
 				err("%s - error loading firmware: error = %d", __FUNCTION__, err);
-				return err;
+				goto wraperr;
 			}
 		}
 	}
@@ -163,7 +172,7 @@ static int emi26_load_firmware (struct usb_device *dev)
 	err = emi26_set_reset(dev,1);
 	if (err < 0) {
 		err("%s - error loading firmware: error = %d", __FUNCTION__, err);
-		return err;
+		goto wraperr;
 	}
 
 	for (i=0; g_Firmware[i].type == 0; i++) {
@@ -171,7 +180,7 @@ static int emi26_load_firmware (struct usb_device *dev)
 			err = emi26_writememory(dev, g_Firmware[i].address, g_Firmware[i].data, g_Firmware[i].length, ANCHOR_LOAD_INTERNAL);
 			if (err < 0) {
 				err("%s - error loading firmware: error = %d", __FUNCTION__, err);
-				return err;
+				goto wraperr;
 			}
 		}
 	}
@@ -180,12 +189,16 @@ static int emi26_load_firmware (struct usb_device *dev)
 	err = emi26_set_reset(dev,0);
 	if (err < 0) {
 		err("%s - error loading firmware: error = %d", __FUNCTION__, err);
-		return err;
+		goto wraperr;
 	}
 
 	/* return 1 to fail the driver inialization
 	 * and give real driver change to load */
 	return 1;
+
+wraperr:
+	kfree(buf);
+	return err;
 }
 
 static __devinitdata struct usb_device_id id_table [] = {

drivers/usb/misc/usbtest.c

@@ -881,6 +881,8 @@ static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async)
 
 	init_completion (&completion);
 	urb = simple_alloc_urb (testdev_to_usbdev (dev), pipe, size);
+	if (!urb)
+		return -ENOMEM;
 	if (async)
 		urb->transfer_flags |= URB_ASYNC_UNLINK;
 	urb->context = &completion;
@@ -1407,6 +1409,11 @@ static struct usb_device_id id_table [] = {
 		.driver_info = (unsigned long) &fw_info,
 		},
 
+	/* "Gadget Zero" firmware runs under Linux */
+	{ USB_DEVICE (0x0525, 0xa4a0),
+		.driver_info = (unsigned long) &fw_info,
+		},
+
 #ifdef KEYSPAN_19Qi
 	/* Keyspan 19qi uses an21xx (original EZ-USB) */
 	// this does not coexist with the real Keyspan 19qi driver!

drivers/usb/net/cdc-ether.c

@@ -269,22 +269,8 @@ static void CDCEther_tx_timeout( struct net_device *net )
 static int CDCEther_start_xmit( struct sk_buff *skb, struct net_device *net )
 {
 	ether_dev_t	*ether_dev = net->priv;
-	int 	count;
 	int 	res;
 
-	// If we are told to transmit an ethernet frame that fits EXACTLY 
-	// into an integer number of USB packets, we force it to send one 
-	// more byte so the device will get a runt USB packet signalling the 
-	// end of the ethernet frame
-	if ( (skb->len) ^ (ether_dev->data_ep_out_size) ) {
-		// It was not an exact multiple
-		// no need to add anything extra
-		count = skb->len;
-	} else {
-		// Add one to make it NOT an exact multiple
-		count = skb->len + 1;
-	}
-
 	// Tell the kernel, "No more frames 'til we are done
 	// with this one.'
 	netif_stop_queue( net );
@@ -299,7 +285,10 @@ static int CDCEther_start_xmit( struct sk_buff *skb, struct net_device *net )
 			write_bulk_callback, ether_dev );
 
 	// Tell the URB how much it will be transporting today
-	ether_dev->tx_urb->transfer_buffer_length = count;
+	ether_dev->tx_urb->transfer_buffer_length = skb->len;
+
+	/* Deal with the zero length problem, I hope */
+	ether_dev->tx_urb->transfer_flags |= URB_ZERO_PACKET;
 	
 	// Send the URB on its merry way.
 	if ((res = usb_submit_urb(ether_dev->tx_urb, GFP_ATOMIC)))  {

drivers/usb/serial/kobil_sct.c

@@ -406,8 +406,6 @@ static int kobil_write (struct usb_serial_port *port, int from_user,
 	int result = 0;
 	int todo = 0;
 	struct kobil_private * priv;
-	int i;
-	char *data;
 
 	if (count == 0) {
 		dbg("%s - port %d write request of 0 bytes", __FUNCTION__, port->number);
@@ -421,19 +419,6 @@ static int kobil_write (struct usb_serial_port *port, int from_user,
 		return -ENOMEM;
 	}
 
-	// BEGIN DEBUG
-	data = (unsigned char *) kmalloc((3 * count + 10) * sizeof(char), GFP_KERNEL);  
-	if (! data) {
-		return (-1);
-	}
-	memset(data, 0, (3 * count + 10));
-	for (i = 0; i < count; i++) { 
-		sprintf(data +3*i, "%02X ", buf[i]); 
-	} 
-	dbg(" %d --> %s", port->number, data );
-	kfree(data);
-	// END DEBUG
-
 	// Copy data to buffer
 	if (from_user) {
 		if (copy_from_user(priv->buf + priv->filled, buf, count)) {
@@ -443,6 +428,8 @@ static int kobil_write (struct usb_serial_port *port, int from_user,
 		memcpy (priv->buf + priv->filled, buf, count);
 	}
 
+	usb_serial_debug_data (__FILE__, __FUNCTION__, count, priv->buf + priv->filled);
+
 	priv->filled = priv->filled + count;
 
 

drivers/usb/storage/isd200.c

@@ -405,11 +405,14 @@ static int isd200_action( struct us_data *us, int action,
 {
 	union ata_cdb ata;
 	struct scsi_cmnd srb;
+	struct scsi_device srb_dev;
 	struct isd200_info *info = (struct isd200_info *)us->extra;
 	int status;
 
 	memset(&ata, 0, sizeof(ata));
 	memset(&srb, 0, sizeof(srb));
+	memset(&srb_dev, 0, sizeof(srb_dev));
+	srb.device = &srb_dev;
 
 	ata.generic.SignatureByte0 = info->ConfigData.ATAMajorCommand;
 	ata.generic.SignatureByte1 = info->ConfigData.ATAMinorCommand;
@@ -479,6 +482,7 @@ static int isd200_action( struct us_data *us, int action,
 	}
 
 	memcpy(srb.cmnd, &ata, sizeof(ata.generic));
+	srb.cmd_len = sizeof(ata.generic);
 	status = usb_stor_Bulk_transport(&srb, us);
 	if (status == USB_STOR_TRANSPORT_GOOD)
 		status = ISD200_GOOD;
@@ -538,6 +542,7 @@ void isd200_invoke_transport( struct us_data *us,
 	/* send the command to the transport layer */
 	srb->resid = 0;
 	memcpy(srb->cmnd, ataCdb, sizeof(ataCdb->generic));
+	srb->cmd_len = sizeof(ataCdb->generic);
 	transferStatus = usb_stor_Bulk_transport(srb, us);
 
 	/* if the command gets aborted by the higher layers, we need to

drivers/usb/storage/scsiglue.c

@@ -209,21 +209,14 @@ static int usb_storage_device_reset( Scsi_Cmnd *srb )
 	return result;
 }
 
-/* This resets the device port, and simulates the device
- * disconnect/reconnect for all drivers which have claimed
- * interfaces, including ourself. */
+/* This resets the device port */
+/* It refuses to work if there's more than one interface in
+   this device, so that other users are not affected. */
 /* This is always called with scsi_lock(srb->host) held */
 
-/* FIXME: This needs to be re-examined in the face of the new
- * hotplug system -- this will implicitly cause a detach/reattach of
- * usb-storage, which is not what we want now.
- *
- * Can we just skip over usb-storage in the while loop?
- */
 static int usb_storage_bus_reset( Scsi_Cmnd *srb )
 {
 	struct us_data *us;
-	int i;
 	int result;
 
 	/* we use the usb_reset_device() function to handle this for us */
@@ -231,36 +224,25 @@ static int usb_storage_bus_reset( Scsi_Cmnd *srb )
 	scsi_unlock(srb->device->host);
 	us = (struct us_data *)srb->device->host->hostdata[0];
 
-	/* attempt to reset the port */
-	result = usb_reset_device(us->pusb_dev);
-	US_DEBUGP("usb_reset_device returns %d\n", result);
-	if (result < 0) {
-		scsi_lock(srb->device->host);
-		return FAILED;
+	/* The USB subsystem doesn't handle synchronisation between
+	   a device's several drivers. Therefore we reset only devices
+	   with one interface which we of course own.
+	*/
+	
+	//FIXME: needs locking against config changes
+	
+	if ( us->pusb_dev->actconfig->desc.bNumInterfaces == 1) {
+		/* attempt to reset the port */
+		result = usb_reset_device(us->pusb_dev);
+		US_DEBUGP("usb_reset_device returns %d\n", result);
+	} else {
+		result = -EBUSY;
+		US_DEBUGP("cannot reset a multiinterface device. failing to reset.\n");
 	}
 
-	/* FIXME: This needs to lock out driver probing while it's working
-	 * or we can have race conditions */
-	/* This functionality really should be provided by the khubd thread */
-	for (i = 0; i < us->pusb_dev->actconfig->desc.bNumInterfaces; i++) {
- 		struct usb_interface *intf =
-			&us->pusb_dev->actconfig->interface[i];
-
-		/* if this is an unclaimed interface, skip it */
-		if (!intf->driver) {
-			continue;
-		}
-
-		US_DEBUGP("Examining driver %s...", intf->driver->name);
-
-		/* simulate a disconnect and reconnect for all interfaces */
-		US_DEBUGPX("simulating disconnect/reconnect.\n");
-		usb_device_remove (&intf->dev);
-		usb_device_probe (&intf->dev);
-	}
 	US_DEBUGP("bus_reset() complete\n");
 	scsi_lock(srb->device->host);
-	return SUCCESS;
+	return result < 0 ? FAILED : SUCCESS;
 }
 
 /***********************************************************************

drivers/usb/storage/transport.c

@@ -126,6 +126,7 @@ static int usb_stor_msg_common(struct us_data *us)
 	us->current_urb->actual_length = 0;
 	us->current_urb->error_count = 0;
 	us->current_urb->transfer_flags = URB_ASYNC_UNLINK;
+	us->current_urb->status = 0;
 
 	/* submit the URB */
 	status = usb_submit_urb(us->current_urb, GFP_NOIO);
@@ -900,7 +901,7 @@ int usb_stor_Bulk_transport(Scsi_Cmnd *srb, struct us_data *us)
 	bcb.DataTransferLength = cpu_to_le32(transfer_length);
 	bcb.Flags = srb->sc_data_direction == SCSI_DATA_READ ? 1 << 7 : 0;
 	bcb.Tag = srb->serial_number;
-	bcb.Lun = srb->cmnd[1] >> 5;
+	bcb.Lun = srb->device->lun;
 	if (us->flags & US_FL_SCM_MULT_TARG)
 		bcb.Lun |= srb->device->id << 4;
 	bcb.Length = srb->cmd_len;

drivers/usb/storage/usb.c

@@ -360,7 +360,7 @@ static int usb_stor_control_thread(void * __us)
 		}
 
 		else if (us->srb->device->lun > us->max_lun) {
-			US_DEBUGP("Bad LUN (%d/%d)\n",
+			US_DEBUGP("Bad LUN (%d:%d)\n",
 				  us->srb->device->id, us->srb->device->lun);
 			us->srb->result = DID_BAD_TARGET << 16;
 		}
@@ -475,8 +475,6 @@ static int usb_stor_allocate_urbs(struct us_data *ss)
  */
 static void usb_stor_deallocate_urbs(struct us_data *ss)
 {
-	int result;
-
 	/* free the scatter-gather request block */
 	if (ss->current_sg) {
 		kfree(ss->current_sg);
@@ -486,8 +484,6 @@ static void usb_stor_deallocate_urbs(struct us_data *ss)
 	/* free up the main URB for this device */
 	if (ss->current_urb) {
 		US_DEBUGP("-- releasing main URB\n");
-		result = usb_unlink_urb(ss->current_urb);
-		US_DEBUGP("-- usb_unlink_urb() returned %d\n", result);
 		usb_free_urb(ss->current_urb);
 		ss->current_urb = NULL;
 	}

drivers/usb/usb-skeleton.c

@@ -72,13 +72,15 @@ MODULE_PARM(debug, "i");
 MODULE_PARM_DESC(debug, "Debug enabled or not");
 
 
-/* Define these values to match your device */
+/* Define these values to match your devices */
 #define USB_SKEL_VENDOR_ID	0xfff0
 #define USB_SKEL_PRODUCT_ID	0xfff0
 
 /* table of devices that work with this driver */
 static struct usb_device_id skel_table [] = {
 	{ USB_DEVICE(USB_SKEL_VENDOR_ID, USB_SKEL_PRODUCT_ID) },
+	/* "Gadget Zero" firmware runs under Linux */
+	{ USB_DEVICE(0x0525, 0xa4a0) },
 	{ }					/* Terminating entry */
 };
 
@@ -707,7 +709,7 @@ static int __init usb_skel_init(void)
 	/* register this driver with the USB subsystem */
 	result = usb_register(&skel_driver);
 	if (result < 0) {
-		err("usb_register failed for the "__FILE__" driver. Error number %d",
+		err("usb_register failed. Error number %d",
 		    result);
 		return -1;
 	}