Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream

31 files changed, 263 insertions, 126 deletions

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 20104443081..d50a99f70ae 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -158,16 +158,12 @@ static int acm_wb_is_avail(struct acm *acm)
 }
 
 /*
- * Finish write.
+ * Finish write. Caller must hold acm->write_lock
  */
 static void acm_write_done(struct acm *acm, struct acm_wb *wb)
 {
-	unsigned long flags;
-
-	spin_lock_irqsave(&acm->write_lock, flags);
 	wb->use = 0;
 	acm->transmitting--;
-	spin_unlock_irqrestore(&acm->write_lock, flags);
 }
 
 /*
@@ -482,6 +478,7 @@ static void acm_write_bulk(struct urb *urb)
 {
 	struct acm_wb *wb = urb->context;
 	struct acm *acm = wb->instance;
+	unsigned long flags;
 
 	if (verbose || urb->status
 			|| (urb->actual_length != urb->transfer_buffer_length))
@@ -490,7 +487,9 @@ static void acm_write_bulk(struct urb *urb)
 			urb->transfer_buffer_length,
 			urb->status);
 
+	spin_lock_irqsave(&acm->write_lock, flags);
 	acm_write_done(acm, wb);
+	spin_unlock_irqrestore(&acm->write_lock, flags);
 	if (ACM_READY(acm))
 		schedule_work(&acm->work);
 	else
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index 543811f6e6e..8e74657f106 100644
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -133,7 +133,7 @@ static int usbtmc_release(struct inode *inode, struct file *file)
 
 static int usbtmc_ioctl_abort_bulk_in(struct usbtmc_device_data *data)
 {
-	char *buffer;
+	u8 *buffer;
 	struct device *dev;
 	int rv;
 	int n;
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index fc9018e72a0..e1b42626d04 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -106,6 +106,9 @@ static DEFINE_SPINLOCK(hcd_root_hub_lock);
 /* used when updating an endpoint's URB list */
 static DEFINE_SPINLOCK(hcd_urb_list_lock);
 
+/* used to protect against unlinking URBs after the device is gone */
+static DEFINE_SPINLOCK(hcd_urb_unlink_lock);
+
 /* wait queue for synchronous unlinks */
 DECLARE_WAIT_QUEUE_HEAD(usb_kill_urb_queue);
 
@@ -1376,10 +1379,25 @@ static int unlink1(struct usb_hcd *hcd, struct urb *urb, int status)
 int usb_hcd_unlink_urb (struct urb *urb, int status)
 {
 	struct usb_hcd		*hcd;
-	int			retval;
+	int			retval = -EIDRM;
+	unsigned long		flags;
 
-	hcd = bus_to_hcd(urb->dev->bus);
-	retval = unlink1(hcd, urb, status);
+	/* Prevent the device and bus from going away while
+	 * the unlink is carried out.  If they are already gone
+	 * then urb->use_count must be 0, since disconnected
+	 * devices can't have any active URBs.
+	 */
+	spin_lock_irqsave(&hcd_urb_unlink_lock, flags);
+	if (atomic_read(&urb->use_count) > 0) {
+		retval = 0;
+		usb_get_dev(urb->dev);
+	}
+	spin_unlock_irqrestore(&hcd_urb_unlink_lock, flags);
+	if (retval == 0) {
+		hcd = bus_to_hcd(urb->dev->bus);
+		retval = unlink1(hcd, urb, status);
+		usb_put_dev(urb->dev);
+	}
 
 	if (retval == 0)
 		retval = -EINPROGRESS;
@@ -1528,6 +1546,17 @@ void usb_hcd_disable_endpoint(struct usb_device *udev,
 		hcd->driver->endpoint_disable(hcd, ep);
 }
 
+/* Protect against drivers that try to unlink URBs after the device
+ * is gone, by waiting until all unlinks for @udev are finished.
+ * Since we don't currently track URBs by device, simply wait until
+ * nothing is running in the locked region of usb_hcd_unlink_urb().
+ */
+void usb_hcd_synchronize_unlinks(struct usb_device *udev)
+{
+	spin_lock_irq(&hcd_urb_unlink_lock);
+	spin_unlock_irq(&hcd_urb_unlink_lock);
+}
+
 /*-------------------------------------------------------------------------*/
 
 /* called in any context */
diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h
index 2dcde61c465..9465e70f4dd 100644
--- a/drivers/usb/core/hcd.h
+++ b/drivers/usb/core/hcd.h
@@ -232,6 +232,7 @@ extern void usb_hcd_flush_endpoint(struct usb_device *udev,
 		struct usb_host_endpoint *ep);
 extern void usb_hcd_disable_endpoint(struct usb_device *udev,
 		struct usb_host_endpoint *ep);
+extern void usb_hcd_synchronize_unlinks(struct usb_device *udev);
 extern int usb_hcd_get_frame_number(struct usb_device *udev);
 
 extern struct usb_hcd *usb_create_hcd(const struct hc_driver *driver,
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 9b3f16bd12c..b19cbfcd51d 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -659,6 +659,9 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
 			PREPARE_DELAYED_WORK(&hub->init_work, hub_init_func2);
 			schedule_delayed_work(&hub->init_work,
 					msecs_to_jiffies(delay));
+
+			/* Suppress autosuspend until init is done */
+			to_usb_interface(hub->intfdev)->pm_usage_cnt = 1;
 			return;		/* Continues at init2: below */
 		} else {
 			hub_power_on(hub, true);
@@ -1429,6 +1432,7 @@ void usb_disconnect(struct usb_device **pdev)
 	 */
 	dev_dbg (&udev->dev, "unregistering device\n");
 	usb_disable_device(udev, 0);
+	usb_hcd_synchronize_unlinks(udev);
 
 	usb_unlock_device(udev);
 
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index 887738577b2..6d1048faf08 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -1091,6 +1091,7 @@ void usb_disable_device(struct usb_device *dev, int skip_ep0)
 				continue;
 			dev_dbg(&dev->dev, "unregistering interface %s\n",
 				dev_name(&interface->dev));
+			interface->unregistering = 1;
 			usb_remove_sysfs_intf_files(interface);
 			device_del(&interface->dev);
 		}
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index f66fba11fbd..4fb65fdc9dc 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -840,7 +840,7 @@ int usb_create_sysfs_intf_files(struct usb_interface *intf)
 	struct usb_host_interface *alt = intf->cur_altsetting;
 	int retval;
 
-	if (intf->sysfs_files_created)
+	if (intf->sysfs_files_created || intf->unregistering)
 		return 0;
 
 	/* The interface string may be present in some altsettings
diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c
index f2638009a46..1f68af9db3f 100644
--- a/drivers/usb/core/urb.c
+++ b/drivers/usb/core/urb.c
@@ -85,8 +85,8 @@ EXPORT_SYMBOL_GPL(usb_alloc_urb);
  * Must be called when a user of a urb is finished with it.  When the last user
  * of the urb calls this function, the memory of the urb is freed.
  *
- * Note: The transfer buffer associated with the urb is not freed, that must be
- * done elsewhere.
+ * Note: The transfer buffer associated with the urb is not freed unless the
+ * URB_FREE_BUFFER transfer flag is set.
  */
 void usb_free_urb(struct urb *urb)
 {
@@ -474,6 +474,12 @@ EXPORT_SYMBOL_GPL(usb_submit_urb);
  * indicating that the request has been canceled (rather than any other
  * code).
  *
+ * Drivers should not call this routine or related routines, such as
+ * usb_kill_urb() or usb_unlink_anchored_urbs(), after their disconnect
+ * method has returned.  The disconnect function should synchronize with
+ * a driver's I/O routines to insure that all URB-related activity has
+ * completed before it returns.
+ *
  * This request is always asynchronous.  Success is indicated by
  * returning -EINPROGRESS, at which time the URB will probably not yet
  * have been given back to the device driver.  When it is eventually
@@ -550,6 +556,9 @@ EXPORT_SYMBOL_GPL(usb_unlink_urb);
  * This routine may not be used in an interrupt context (such as a bottom
  * half or a completion handler), or when holding a spinlock, or in other
  * situations where the caller can't schedule().
+ *
+ * This routine should not be called by a driver after its disconnect
+ * method has returned.
  */
 void usb_kill_urb(struct urb *urb)
 {
@@ -588,6 +597,9 @@ EXPORT_SYMBOL_GPL(usb_kill_urb);
  * This routine may not be used in an interrupt context (such as a bottom
  * half or a completion handler), or when holding a spinlock, or in other
  * situations where the caller can't schedule().
+ *
+ * This routine should not be called by a driver after its disconnect
+ * method has returned.
  */
 void usb_poison_urb(struct urb *urb)
 {
@@ -622,6 +634,9 @@ EXPORT_SYMBOL_GPL(usb_unpoison_urb);
  *
  * this allows all outstanding URBs to be killed starting
  * from the back of the queue
+ *
+ * This routine should not be called by a driver after its disconnect
+ * method has returned.
  */
 void usb_kill_anchored_urbs(struct usb_anchor *anchor)
 {
@@ -651,6 +666,9 @@ EXPORT_SYMBOL_GPL(usb_kill_anchored_urbs);
  * this allows all outstanding URBs to be poisoned starting
  * from the back of the queue. Newly added URBs will also be
  * poisoned
+ *
+ * This routine should not be called by a driver after its disconnect
+ * method has returned.
  */
 void usb_poison_anchored_urbs(struct usb_anchor *anchor)
 {
@@ -672,6 +690,7 @@ void usb_poison_anchored_urbs(struct usb_anchor *anchor)
 	spin_unlock_irq(&anchor->lock);
 }
 EXPORT_SYMBOL_GPL(usb_poison_anchored_urbs);
+
 /**
  * usb_unlink_anchored_urbs - asynchronously cancel transfer requests en masse
  * @anchor: anchor the requests are bound to
@@ -680,6 +699,9 @@ EXPORT_SYMBOL_GPL(usb_poison_anchored_urbs);
  * from the back of the queue. This function is asynchronous.
  * The unlinking is just tiggered. It may happen after this
  * function has returned.
+ *
+ * This routine should not be called by a driver after its disconnect
+ * method has returned.
  */
 void usb_unlink_anchored_urbs(struct usb_anchor *anchor)
 {
diff --git a/drivers/usb/gadget/f_acm.c b/drivers/usb/gadget/f_acm.c
index 5ee1590b8e9..c1d34df0b15 100644
--- a/drivers/usb/gadget/f_acm.c
+++ b/drivers/usb/gadget/f_acm.c
@@ -463,7 +463,11 @@ static int acm_cdc_notify(struct f_acm *acm, u8 type, u16 value,
 	notify->wLength = cpu_to_le16(length);
 	memcpy(buf, data, length);
 
+	/* ep_queue() can complete immediately if it fills the fifo... */
+	spin_unlock(&acm->lock);
 	status = usb_ep_queue(ep, req, GFP_ATOMIC);
+	spin_lock(&acm->lock);
+
 	if (status < 0) {
 		ERROR(acm->port.func.config->cdev,
 				"acm ttyGS%d can't notify serial state, %d\n",
diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c
index f4585d3e90d..eeb26c0f88e 100644
--- a/drivers/usb/gadget/inode.c
+++ b/drivers/usb/gadget/inode.c
@@ -1251,7 +1251,6 @@ dev_release (struct inode *inode, struct file *fd)
 	 * alternatively, all host requests will time out.
 	 */
 
-	fasync_helper (-1, fd, 0, &dev->fasync);
 	kfree (dev->buf);
 	dev->buf = NULL;
 	put_dev (dev);
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 56f592dc0b3..f3a75a929e0 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -110,29 +110,18 @@ config USB_ISP116X_HCD
 
 config USB_ISP1760_HCD
 	tristate "ISP 1760 HCD support"
-	depends on USB && EXPERIMENTAL
+	depends on USB && EXPERIMENTAL && (PCI || PPC_OF)
 	---help---
 	  The ISP1760 chip is a USB 2.0 host controller.
 
 	  This driver does not support isochronous transfers or OTG.
+	  This USB controller is usually attached to a non-DMA-Master
+	  capable bus. NXP's eval kit brings this chip on PCI card
+	  where the chip itself is behind a PLB to simulate such
+	  a bus.
 
 	  To compile this driver as a module, choose M here: the
-	  module will be called isp1760-hcd.
-
-config USB_ISP1760_PCI
-	bool "Support for the PCI bus"
-	depends on USB_ISP1760_HCD && PCI
-	---help---
-	  Enables support for the device present on the PCI bus.
-	  This should only be required if you happen to have the eval kit from
-	  NXP and you are going to test it.
-
-config USB_ISP1760_OF
-	bool "Support for the OF platform bus"
-	depends on USB_ISP1760_HCD && PPC_OF
-	---help---
-	  Enables support for the device present on the PowerPC
-	  OpenFirmware platform bus.
+	  module will be called isp1760.
 
 config USB_OHCI_HCD
 	tristate "OHCI HCD support"
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 15a803b206b..4725d15d096 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -643,7 +643,7 @@ static int ehci_run (struct usb_hcd *hcd)
 static irqreturn_t ehci_irq (struct usb_hcd *hcd)
 {
 	struct ehci_hcd		*ehci = hcd_to_ehci (hcd);
-	u32			status, pcd_status = 0, cmd;
+	u32			status, masked_status, pcd_status = 0, cmd;
 	int			bh;
 
 	spin_lock (&ehci->lock);
@@ -656,14 +656,14 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd)
 		goto dead;
 	}
 
-	status &= INTR_MASK;
-	if (!status) {			/* irq sharing? */
+	masked_status = status & INTR_MASK;
+	if (!masked_status) {		/* irq sharing? */
 		spin_unlock(&ehci->lock);
 		return IRQ_NONE;
 	}
 
 	/* clear (just) interrupts */
-	ehci_writel(ehci, status, &ehci->regs->status);
+	ehci_writel(ehci, masked_status, &ehci->regs->status);
 	cmd = ehci_readl(ehci, &ehci->regs->command);
 	bh = 0;
 
@@ -734,18 +734,17 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd)
 
 	/* PCI errors [4.15.2.4] */
 	if (unlikely ((status & STS_FATAL) != 0)) {
+		ehci_err(ehci, "fatal error\n");
 		dbg_cmd(ehci, "fatal", cmd);
 		dbg_status(ehci, "fatal", status);
-		if (status & STS_HALT) {
-			ehci_err (ehci, "fatal error\n");
+		ehci_halt(ehci);
 dead:
-			ehci_reset (ehci);
-			ehci_writel(ehci, 0, &ehci->regs->configured_flag);
-			/* generic layer kills/unlinks all urbs, then
-			 * uses ehci_stop to clean up the rest
-			 */
-			bh = 1;
-		}
+		ehci_reset(ehci);
+		ehci_writel(ehci, 0, &ehci->regs->configured_flag);
+		/* generic layer kills/unlinks all urbs, then
+		 * uses ehci_stop to clean up the rest
+		 */
+		bh = 1;
 	}
 
 	if (bh)
diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c
index 0eba894bcb0..9c9da35abc6 100644
--- a/drivers/usb/host/ehci-ps3.c
+++ b/drivers/usb/host/ehci-ps3.c
@@ -205,6 +205,7 @@ static int ps3_ehci_remove(struct ps3_system_bus_device *dev)
 
 	tmp = hcd->irq;
 
+	ehci_shutdown(hcd);
 	usb_remove_hcd(hcd);
 
 	ps3_system_bus_set_driver_data(dev, NULL);
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 4a0c5a78b2e..a081ee65bde 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -918,7 +918,7 @@ iso_stream_init (
 		 */
 		stream->usecs = HS_USECS_ISO (maxp);
 		bandwidth = stream->usecs * 8;
-		bandwidth /= 1 << (interval - 1);
+		bandwidth /= interval;
 
 	} else {
 		u32		addr;
@@ -951,7 +951,7 @@ iso_stream_init (
 		} else
 			stream->raw_mask = smask_out [hs_transfers - 1];
 		bandwidth = stream->usecs + stream->c_usecs;
-		bandwidth /= 1 << (interval + 2);
+		bandwidth /= interval << 3;
 
 		/* stream->splits gets created from raw_mask later */
 		stream->address = cpu_to_hc32(ehci, addr);
diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c
index af849f59613..b87ca7cf4b3 100644
--- a/drivers/usb/host/isp1760-if.c
+++ b/drivers/usb/host/isp1760-if.c
@@ -14,16 +14,16 @@
 #include "../core/hcd.h"
 #include "isp1760-hcd.h"
 
-#ifdef CONFIG_USB_ISP1760_OF
+#ifdef CONFIG_PPC_OF
 #include <linux/of.h>
 #include <linux/of_platform.h>
 #endif
 
-#ifdef CONFIG_USB_ISP1760_PCI
+#ifdef CONFIG_PCI
 #include <linux/pci.h>
 #endif
 
-#ifdef CONFIG_USB_ISP1760_OF
+#ifdef CONFIG_PPC_OF
 static int of_isp1760_probe(struct of_device *dev,
 		const struct of_device_id *match)
 {
@@ -128,7 +128,7 @@ static struct of_platform_driver isp1760_of_driver = {
 };
 #endif
 
-#ifdef CONFIG_USB_ISP1760_PCI
+#ifdef CONFIG_PCI
 static u32 nxp_pci_io_base;
 static u32 iolength;
 static u32 pci_mem_phy0;
@@ -288,28 +288,28 @@ static struct pci_driver isp1761_pci_driver = {
 
 static int __init isp1760_init(void)
 {
-	int ret = -ENODEV;
+	int ret;
 
 	init_kmem_once();
 
-#ifdef CONFIG_USB_ISP1760_OF
+#ifdef CONFIG_PPC_OF
 	ret = of_register_platform_driver(&isp1760_of_driver);
 	if (ret) {
 		deinit_kmem_cache();
 		return ret;
 	}
 #endif
-#ifdef CONFIG_USB_ISP1760_PCI
+#ifdef CONFIG_PCI
 	ret = pci_register_driver(&isp1761_pci_driver);
 	if (ret)
 		goto unreg_of;
 #endif
 	return ret;
 
-#ifdef CONFIG_USB_ISP1760_PCI
+#ifdef CONFIG_PCI
 unreg_of:
 #endif
-#ifdef CONFIG_USB_ISP1760_OF
+#ifdef CONFIG_PPC_OF
 	of_unregister_platform_driver(&isp1760_of_driver);
 #endif
 	deinit_kmem_cache();
@@ -319,10 +319,10 @@ module_init(isp1760_init);
 
 static void __exit isp1760_exit(void)
 {
-#ifdef CONFIG_USB_ISP1760_OF
+#ifdef CONFIG_PPC_OF
 	of_unregister_platform_driver(&isp1760_of_driver);
 #endif
-#ifdef CONFIG_USB_ISP1760_PCI
+#ifdef CONFIG_PCI
 	pci_unregister_driver(&isp1761_pci_driver);
 #endif
 	deinit_kmem_cache();
diff --git a/drivers/usb/host/ohci-ps3.c b/drivers/usb/host/ohci-ps3.c
index 2089d8a46c4..3c1a3b5f89f 100644
--- a/drivers/usb/host/ohci-ps3.c
+++ b/drivers/usb/host/ohci-ps3.c
@@ -192,7 +192,7 @@ fail_start:
 	return result;
 }
 
-static int ps3_ohci_remove (struct ps3_system_bus_device *dev)
+static int ps3_ohci_remove(struct ps3_system_bus_device *dev)
 {
 	unsigned int tmp;
 	struct usb_hcd *hcd =
@@ -205,6 +205,7 @@ static int ps3_ohci_remove (struct ps3_system_bus_device *dev)
 
 	tmp = hcd->irq;
 
+	ohci_shutdown(hcd);
 	usb_remove_hcd(hcd);
 
 	ps3_system_bus_set_driver_data(dev, NULL);
diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c
index c18d8790c41..2376f24f3c8 100644
--- a/drivers/usb/host/r8a66597-hcd.c
+++ b/drivers/usb/host/r8a66597-hcd.c
@@ -1763,11 +1763,12 @@ static void r8a66597_timer(unsigned long _r8a66597)
 {
 	struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
 	unsigned long flags;
+	int port;
 
 	spin_lock_irqsave(&r8a66597->lock, flags);
 
-	r8a66597_root_hub_control(r8a66597, 0);
-	r8a66597_root_hub_control(r8a66597, 1);
+	for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++)
+		r8a66597_root_hub_control(r8a66597, port);
 
 	spin_unlock_irqrestore(&r8a66597->lock, flags);
 }
diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c
index 69c34a58e20..b4ec716de7d 100644
--- a/drivers/usb/misc/sisusbvga/sisusb.c
+++ b/drivers/usb/misc/sisusbvga/sisusb.c
@@ -3270,6 +3270,7 @@ static struct usb_device_id sisusb_table [] = {
 	{ USB_DEVICE(0x0711, 0x0900) },
 	{ USB_DEVICE(0x0711, 0x0901) },
 	{ USB_DEVICE(0x0711, 0x0902) },
+	{ USB_DEVICE(0x0711, 0x0903) },
 	{ USB_DEVICE(0x0711, 0x0918) },
 	{ USB_DEVICE(0x182d, 0x021c) },
 	{ USB_DEVICE(0x182d, 0x0269) },
diff --git a/drivers/usb/misc/vstusb.c b/drivers/usb/misc/vstusb.c
index 8648470c81c..63dff9ba73c 100644
--- a/drivers/usb/misc/vstusb.c
+++ b/drivers/usb/misc/vstusb.c
@@ -620,7 +620,7 @@ static long vstusb_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 				__func__);
 			retval = -EFAULT;
 		} else {
-			dev_dbg(&dev->dev, "%s: recv %d bytes from pipe %d\n",
+			dev_dbg(&dev->dev, "%s: recv %zd bytes from pipe %d\n",
 				__func__, usb_data.count, usb_data.pipe);
 		}
 
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 4a35745b30b..5280dba9b1f 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -114,8 +114,8 @@
 
 
 
-unsigned debug;
-module_param(debug, uint, S_IRUGO | S_IWUSR);
+unsigned musb_debug;
+module_param(musb_debug, uint, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(debug, "Debug message level. Default = 0");
 
 #define DRIVER_AUTHOR "Mentor Graphics, Texas Instruments, Nokia"
@@ -2248,7 +2248,7 @@ static int __init musb_init(void)
 		"host"
 #endif
 		", debug=%d\n",
-		musb_driver_name, debug);
+		musb_driver_name, musb_debug);
 	return platform_driver_probe(&musb_driver, musb_probe);
 }
 
diff --git a/drivers/usb/musb/musb_debug.h b/drivers/usb/musb/musb_debug.h
index 4d2794441b1..9fc1db44c72 100644
--- a/drivers/usb/musb/musb_debug.h
+++ b/drivers/usb/musb/musb_debug.h
@@ -48,11 +48,11 @@
 				__func__, __LINE__ , ## args); \
 	} } while (0)
 
-extern unsigned debug;
+extern unsigned musb_debug;
 
 static inline int _dbg_level(unsigned l)
 {
-	return debug >= l;
+	return musb_debug >= l;
 }
 
 #define DBG(level, fmt, args...) xprintk(level, KERN_DEBUG, fmt, ## args)
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 3133990f04e..e45e70bcc5e 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -378,6 +378,19 @@ musb_giveback(struct musb_qh *qh, struct urb *urb, int status)
 
 		switch (qh->type) {
 
+		case USB_ENDPOINT_XFER_CONTROL:
+		case USB_ENDPOINT_XFER_BULK:
+			/* fifo policy for these lists, except that NAKing
+			 * should rotate a qh to the end (for fairness).
+			 */
+			if (qh->mux == 1) {
+				head = qh->ring.prev;
+				list_del(&qh->ring);
+				kfree(qh);
+				qh = first_qh(head);
+				break;
+			}
+
 		case USB_ENDPOINT_XFER_ISOC:
 		case USB_ENDPOINT_XFER_INT:
 			/* this is where periodic bandwidth should be
@@ -388,17 +401,6 @@ musb_giveback(struct musb_qh *qh, struct urb *urb, int status)
 			kfree(qh);
 			qh = NULL;
 			break;
-
-		case USB_ENDPOINT_XFER_CONTROL:
-		case USB_ENDPOINT_XFER_BULK:
-			/* fifo policy for these lists, except that NAKing
-			 * should rotate a qh to the end (for fairness).
-			 */
-			head = qh->ring.prev;
-			list_del(&qh->ring);
-			kfree(qh);
-			qh = first_qh(head);
-			break;
 		}
 	}
 	return qh;
@@ -1507,10 +1509,29 @@ void musb_host_rx(struct musb *musb, u8 epnum)
 		musb_writew(hw_ep->regs, MUSB_RXCSR, val);
 
 #ifdef CONFIG_USB_INVENTRA_DMA
+		if (usb_pipeisoc(pipe)) {
+			struct usb_iso_packet_descriptor *d;
+
+			d = urb->iso_frame_desc + qh->iso_idx;
+			d->actual_length = xfer_len;
+
+			/* even if there was an error, we did the dma
+			 * for iso_frame_desc->length
+			 */
+			if (d->status != EILSEQ && d->status != -EOVERFLOW)
+				d->status = 0;
+
+			if (++qh->iso_idx >= urb->number_of_packets)
+				done = true;
+			else
+				done = false;
+
+		} else  {
 		/* done if urb buffer is full or short packet is recd */
 		done = (urb->actual_length + xfer_len >=
 				urb->transfer_buffer_length
 			|| dma->actual_len < qh->maxpacket);
+		}
 
 		/* send IN token for next packet, without AUTOREQ */
 		if (!done) {
@@ -1547,7 +1568,8 @@ void musb_host_rx(struct musb *musb, u8 epnum)
 		if (dma) {
 			struct dma_controller	*c;
 			u16			rx_count;
-			int			ret;
+			int			ret, length;
+			dma_addr_t		buf;
 
 			rx_count = musb_readw(epio, MUSB_RXCOUNT);
 
@@ -1560,6 +1582,35 @@ void musb_host_rx(struct musb *musb, u8 epnum)
 
 			c = musb->dma_controller;
 
+			if (usb_pipeisoc(pipe)) {
+				int status = 0;
+				struct usb_iso_packet_descriptor *d;
+
+				d = urb->iso_frame_desc + qh->iso_idx;
+
+				if (iso_err) {
+					status = -EILSEQ;
+					urb->error_count++;
+				}
+				if (rx_count > d->length) {
+					if (status == 0) {
+						status = -EOVERFLOW;
+						urb->error_count++;
+					}
+					DBG(2, "** OVERFLOW %d into %d\n",\
+					    rx_count, d->length);
+
+					length = d->length;
+				} else
+					length = rx_count;
+				d->status = status;
+				buf = urb->transfer_dma + d->offset;
+			} else {
+				length = rx_count;
+				buf = urb->transfer_dma +
+						urb->actual_length;
+			}
+
 			dma->desired_mode = 0;
 #ifdef USE_MODE1
 			/* because of the issue below, mode 1 will
@@ -1571,6 +1622,12 @@ void musb_host_rx(struct musb *musb, u8 epnum)
 						urb->actual_length)
 					> qh->maxpacket)
 				dma->desired_mode = 1;
+			if (rx_count < hw_ep->max_packet_sz_rx) {
+				length = rx_count;
+				dma->bDesiredMode = 0;
+			} else {
+				length = urb->transfer_buffer_length;
+			}
 #endif
 
 /* Disadvantage of using mode 1:
@@ -1608,12 +1665,7 @@ void musb_host_rx(struct musb *musb, u8 epnum)
 			 */
 			ret = c->channel_program(
 				dma, qh->maxpacket,
-				dma->desired_mode,
-				urb->transfer_dma
-					+ urb->actual_length,
-				(dma->desired_mode == 0)
-					? rx_count
-					: urb->transfer_buffer_length);
+				dma->desired_mode, buf, length);
 
 			if (!ret) {
 				c->channel_release(dma);
@@ -1631,19 +1683,6 @@ void musb_host_rx(struct musb *musb, u8 epnum)
 		}
 	}
 
-	if (dma && usb_pipeisoc(pipe)) {
-		struct usb_iso_packet_descriptor	*d;
-		int					iso_stat = status;
-
-		d = urb->iso_frame_desc + qh->iso_idx;
-		d->actual_length += xfer_len;
-		if (iso_err) {
-			iso_stat = -EILSEQ;
-			urb->error_count++;
-		}
-		d->status = iso_stat;
-	}
-
 finish:
 	urb->actual_length += xfer_len;
 	qh->offset += xfer_len;
@@ -1671,22 +1710,9 @@ static int musb_schedule(
 	struct list_head	*head = NULL;
 
 	/* use fixed hardware for control and bulk */
-	switch (qh->type) {
-	case USB_ENDPOINT_XFER_CONTROL:
+	if (qh->type == USB_ENDPOINT_XFER_CONTROL) {
 		head = &musb->control;
 		hw_ep = musb->control_ep;
-		break;
-	case USB_ENDPOINT_XFER_BULK:
-		hw_ep = musb->bulk_ep;
-		if (is_in)
-			head = &musb->in_bulk;
-		else
-			head = &musb->out_bulk;
-		break;
-	}
-	if (head) {
-		idle = list_empty(head);
-		list_add_tail(&qh->ring, head);
 		goto success;
 	}
 
@@ -1725,19 +1751,34 @@ static int musb_schedule(
 		else
 			diff = hw_ep->max_packet_sz_tx - qh->maxpacket;
 
-		if (diff > 0 && best_diff > diff) {
+		if (diff >= 0 && best_diff > diff) {
 			best_diff = diff;
 			best_end = epnum;
 		}
 	}
-	if (best_end < 0)
+	/* use bulk reserved ep1 if no other ep is free */
+	if (best_end > 0 && qh->type == USB_ENDPOINT_XFER_BULK) {
+		hw_ep = musb->bulk_ep;
+		if (is_in)
+			head = &musb->in_bulk;
+		else
+			head = &musb->out_bulk;
+		goto success;
+	} else if (best_end < 0) {
 		return -ENOSPC;
+	}
 
 	idle = 1;
+	qh->mux = 0;
 	hw_ep = musb->endpoints + best_end;
 	musb->periodic[best_end] = qh;
 	DBG(4, "qh %p periodic slot %d\n", qh, best_end);
 success:
+	if (head) {
+		idle = list_empty(head);
+		list_add_tail(&qh->ring, head);
+		qh->mux = 1;
+	}
 	qh->hw_ep = hw_ep;
 	qh->hep->hcpriv = qh;
 	if (idle)
@@ -2015,11 +2056,13 @@ static int musb_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
 			sched = &musb->control;
 			break;
 		case USB_ENDPOINT_XFER_BULK:
-			if (usb_pipein(urb->pipe))
-				sched = &musb->in_bulk;
-			else
-				sched = &musb->out_bulk;
-			break;
+			if (qh->mux == 1) {
+				if (usb_pipein(urb->pipe))
+					sched = &musb->in_bulk;
+				else
+					sched = &musb->out_bulk;
+				break;
+			}
 		default:
 			/* REVISIT when we get a schedule tree, periodic
 			 * transfers won't always be at the head of a
@@ -2067,11 +2110,13 @@ musb_h_disable(struct usb_hcd *hcd, struct usb_host_endpoint *hep)
 		sched = &musb->control;
 		break;
 	case USB_ENDPOINT_XFER_BULK:
-		if (is_in)
-			sched = &musb->in_bulk;
-		else
-			sched = &musb->out_bulk;
-		break;
+		if (qh->mux == 1) {
+			if (is_in)
+				sched = &musb->in_bulk;
+			else
+				sched = &musb->out_bulk;
+			break;
+		}
 	default:
 		/* REVISIT when we get a schedule tree, periodic transfers
 		 * won't always be at the head of a singleton queue...
diff --git a/drivers/usb/musb/musb_host.h b/drivers/usb/musb/musb_host.h
index 77bcdb9d5b3..0b7fbcd2196 100644
--- a/drivers/usb/musb/musb_host.h
+++ b/drivers/usb/musb/musb_host.h
@@ -53,6 +53,7 @@ struct musb_qh {
 
 	struct list_head	ring;		/* of musb_qh */
 	/* struct musb_qh		*next; */	/* for periodic tree */
+	u8			mux;		/* qh multiplexed to hw_ep */
 
 	unsigned		offset;		/* in urb->transfer_buffer */
 	unsigned		segsize;	/* current xfer fragment */
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 9d2dcb121c5..ce6c162920f 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -53,7 +53,9 @@ static void musb_do_idle(unsigned long _musb)
 {
 	struct musb	*musb = (void *)_musb;
 	unsigned long	flags;
+#ifdef CONFIG_USB_MUSB_HDRC_HCD
 	u8	power;
+#endif
 	u8	devctl;
 
 	devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index b73b036f3d7..ee8fca92a4a 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -605,7 +605,7 @@ void musb_platform_set_mode(struct musb *musb, u8 musb_mode)
 
 	if (musb->board_mode != MUSB_OTG) {
 		ERR("Changing mode currently only supported in OTG mode\n");
-		return;
+		return -EINVAL;
 	}
 
 	otg_stat = musb_readl(tbase, TUSB_DEV_OTG_STAT);
diff --git a/drivers/usb/serial/cp2101.c b/drivers/usb/serial/cp2101.c
index 8008d0bc80a..9035d7256b0 100644
--- a/drivers/usb/serial/cp2101.c
+++ b/drivers/usb/serial/cp2101.c
@@ -67,6 +67,7 @@ static struct usb_device_id id_table [] = {
 	{ USB_DEVICE(0x10C4, 0x800A) }, /* SPORTident BSM7-D-USB main station */
 	{ USB_DEVICE(0x10C4, 0x803B) }, /* Pololu USB-serial converter */
 	{ USB_DEVICE(0x10C4, 0x8053) }, /* Enfora EDG1228 */
+	{ USB_DEVICE(0x10C4, 0x8054) }, /* Enfora GSM2228 */
 	{ USB_DEVICE(0x10C4, 0x8066) }, /* Argussoft In-System Programmer */
 	{ USB_DEVICE(0x10C4, 0x807A) }, /* Crumb128 board */
 	{ USB_DEVICE(0x10C4, 0x80CA) }, /* Degree Controls Inc */
@@ -85,6 +86,7 @@ static struct usb_device_id id_table [] = {
 	{ USB_DEVICE(0x10C4, 0x8218) }, /* Lipowsky Industrie Elektronik GmbH, HARP-1 */
 	{ USB_DEVICE(0x10c4, 0x8293) }, /* Telegesys ETRX2USB */
 	{ USB_DEVICE(0x10C4, 0x8341) }, /* Siemens MC35PU GPRS Modem */
+	{ USB_DEVICE(0x10C4, 0x83A8) }, /* Amber Wireless AMB2560 */
 	{ USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */
 	{ USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */
 	{ USB_DEVICE(0x10C4, 0xF001) }, /* Elan Digital Systems USBscope50 */
diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c
index b679a556b98..4e2cda93da5 100644
--- a/drivers/usb/serial/ir-usb.c
+++ b/drivers/usb/serial/ir-usb.c
@@ -26,7 +26,7 @@
  *	Introduced common header to be used also in USB Gadget Framework.
  *	Still needs some other style fixes.
  *
- * 2007_Jun_21  Alan Cox <alan@redhat.com>
+ * 2007_Jun_21  Alan Cox <alan@lxorguk.ukuu.org.uk>
  *	Minimal cleanups for some of the driver problens and tty layer abuse.
  *	Still needs fixing to allow multiple dongles.
  *
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index bd07eaa300b..6fa1ec441b6 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -160,6 +160,11 @@ static int  option_send_setup(struct tty_struct *tty, struct usb_serial_port *po
 
 #define NOVATELWIRELESS_VENDOR_ID		0x1410
 
+/* YISO PRODUCTS */
+
+#define YISO_VENDOR_ID				0x0EAB
+#define YISO_PRODUCT_U893			0xC893
+
 /* MERLIN EVDO PRODUCTS */
 #define NOVATELWIRELESS_PRODUCT_V640		0x1100
 #define NOVATELWIRELESS_PRODUCT_V620		0x1110
@@ -408,6 +413,7 @@ static struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) },
 	{ USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MSA501HS) },
 	{ USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_ET502HS) },
+	{ USB_DEVICE(YISO_VENDOR_ID, YISO_PRODUCT_U893) },
 	{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
 	{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
 	{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1004) },
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 8be3f39891c..794b5ffe439 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -281,6 +281,7 @@ static void serial_close(struct tty_struct *tty, struct file *filp)
 			if (tty->driver_data)
 				tty->driver_data = NULL;
 			tty_port_tty_set(&port->port, NULL);
+			tty_kref_put(tty);
 		}
 	}
 
diff --git a/drivers/usb/storage/Kconfig b/drivers/usb/storage/Kconfig
index 3d9249632ae..c68b738900b 100644
--- a/drivers/usb/storage/Kconfig
+++ b/drivers/usb/storage/Kconfig
@@ -2,8 +2,8 @@
 # USB Storage driver configuration
 #
 
-comment "NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'"
-comment "may also be needed; see USB_STORAGE Help for more information"
+comment "NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may also be needed;"
+comment "see USB_STORAGE Help for more information"
 	depends on USB
 
 config USB_STORAGE
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index a2b9ebbef38..d4e5fc86e43 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -253,6 +253,14 @@ UNUSUAL_DEV(  0x0421, 0x006a, 0x0000, 0x0591,
 	US_SC_DEVICE, US_PR_DEVICE, NULL,
 	US_FL_FIX_CAPACITY ),
 
+/* Submitted by Ricky Wong Yung Fei <evilbladewarrior@gmail.com> */
+/* Nokia 7610 Supernova - Too many sectors reported in usb storage mode */
+UNUSUAL_DEV(  0x0421, 0x00f5, 0x0000, 0x0470,
+	"Nokia",
+	"7610 Supernova",
+	US_SC_DEVICE, US_PR_DEVICE, NULL,
+	US_FL_FIX_CAPACITY ),
+
 /* Reported by Olaf Hering <olh@suse.de> from novell bug #105878 */
 UNUSUAL_DEV(  0x0424, 0x0fdc, 0x0210, 0x0210,
 		"SMSC",
@@ -333,6 +341,13 @@ UNUSUAL_DEV(  0x0482, 0x0103, 0x0100, 0x0100,
 		"Finecam S5",
 		US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_FIX_INQUIRY),
 
+/* Patch submitted by Jens Taprogge <jens.taprogge@taprogge.org> */
+UNUSUAL_DEV(  0x0482, 0x0107, 0x0100, 0x0100,
+		"Kyocera",
+		"CONTAX SL300R T*",
+		US_SC_DEVICE, US_PR_DEVICE, NULL,
+		US_FL_FIX_CAPACITY | US_FL_NOT_LOCKABLE),
+
 /* Reported by Paul Stewart <stewart@wetlogic.net>
  * This entry is needed because the device reports Sub=ff */
 UNUSUAL_DEV(  0x04a4, 0x0004, 0x0001, 0x0001,
@@ -411,6 +426,13 @@ UNUSUAL_DEV(  0x04b0, 0x0417, 0x0100, 0x0100,
 		US_SC_DEVICE, US_PR_DEVICE, NULL,
 		US_FL_FIX_CAPACITY),
 
+/* Reported by paul ready <lxtwin@homecall.co.uk> */
+UNUSUAL_DEV(  0x04b0, 0x0419, 0x0100, 0x0200,
+		"NIKON",
+		"NIKON DSC D300",
+		US_SC_DEVICE, US_PR_DEVICE, NULL,
+		US_FL_FIX_CAPACITY),
+
 /* Reported by Doug Maxey (dwm@austin.ibm.com) */
 UNUSUAL_DEV(  0x04b3, 0x4001, 0x0110, 0x0110,
 		"IBM",
@@ -1251,6 +1273,13 @@ UNUSUAL_DEV( 0x0839, 0x000a, 0x0001, 0x0001,
 		US_SC_DEVICE, US_PR_DEVICE, NULL,
 		US_FL_FIX_INQUIRY),
 
+/* Reported by Luciano Rocha <luciano@eurotux.com> */
+UNUSUAL_DEV( 0x0840, 0x0082, 0x0001, 0x0001,
+		"Argosy",
+		"Storage",
+		US_SC_DEVICE, US_PR_DEVICE, NULL,
+		US_FL_FIX_CAPACITY),
+
 /* Entry and supporting patch by Theodore Kilgore <kilgota@auburn.edu>.
  * Flag will support Bulk devices which use a standards-violating 32-byte
  * Command Block Wrapper. Here, the "DC2MEGA" cameras (several brands) with