Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6:
  USB: "sparse" cleanups for usb gadgets
  usb-serial: Fix edgeport regression on non-EPiC devices
  USB: more pxa2xx_udc dead code removal
  USB: NIKON D50 is an unusual device
  USB: drivers/usb/serial/sierra.c: make 3 functions static
  USB: fix BUG: sleeping function called from invalid context at /home/jeremy/hg/xen/paravirt/linux/drivers/usb/core/urb.c:524, in_atomic():1, irqs_disabled():0
  USB: mct_u232: Convert to proper speed handling API
  digi_acceleport: Drag the driver kicking and screaming into coding style
  cp2101: Remove broken termios optimisation, use proper speed API
  USB: Fix a bug in usb_start_wait_urb
  USB: fix scatterlist PIO case (IOMMU)
  USB: fix usb_serial_suspend(): buggy code
  USB: yet another quirky device
  USB: Add CanonScan LiDE30 to the quirk list
  USB: even more quirks
  USB: usb.h kernel-doc additions
  USB: more quirky devices
  USB: Don't let usb-storage steal Blackberry Pearl
  USB: devices misc: Trivial patch to build the IOWARRIOR when it is selected in Kconfig

drivers/usb/Makefile

@@ -48,6 +48,7 @@ obj-$(CONFIG_USB_SISUSBVGA)	+= misc/
 obj-$(CONFIG_USB_TEST)		+= misc/
 obj-$(CONFIG_USB_TRANCEVIBRATOR)+= misc/
 obj-$(CONFIG_USB_USS720)	+= misc/
+obj-$(CONFIG_USB_IOWARRIOR)	+= misc/
 
 obj-$(CONFIG_USB_ATM)		+= atm/
 obj-$(CONFIG_USB_SPEEDTOUCH)	+= atm/

drivers/usb/core/message.c

@@ -18,9 +18,17 @@
 #include "hcd.h"	/* for usbcore internals */
 #include "usb.h"
 
+struct api_context {
+	struct completion	done;
+	int			status;
+};
+
 static void usb_api_blocking_completion(struct urb *urb)
 {
-	complete((struct completion *)urb->context);
+	struct api_context *ctx = urb->context;
+
+	ctx->status = urb->status;
+	complete(&ctx->done);
 }
 
 
@@ -32,20 +40,21 @@ static void usb_api_blocking_completion(struct urb *urb)
  */
 static int usb_start_wait_urb(struct urb *urb, int timeout, int *actual_length)
 { 
-	struct completion done;
+	struct api_context ctx;
 	unsigned long expire;
 	int retval;
-	int status = urb->status;
 
-	init_completion(&done); 	
-	urb->context = &done;
+	init_completion(&ctx.done);
+	urb->context = &ctx;
 	urb->actual_length = 0;
 	retval = usb_submit_urb(urb, GFP_NOIO);
 	if (unlikely(retval))
 		goto out;
 
 	expire = timeout ? msecs_to_jiffies(timeout) : MAX_SCHEDULE_TIMEOUT;
-	if (!wait_for_completion_timeout(&done, expire)) {
+	if (!wait_for_completion_timeout(&ctx.done, expire)) {
+		usb_kill_urb(urb);
+		retval = (ctx.status == -ENOENT ? -ETIMEDOUT : ctx.status);
 
 		dev_dbg(&urb->dev->dev,
 			"%s timed out on ep%d%s len=%d/%d\n",
@@ -54,11 +63,8 @@ static int usb_start_wait_urb(struct urb *urb, int timeout, int *actual_length)
 			usb_pipein(urb->pipe) ? "in" : "out",
 			urb->actual_length,
 			urb->transfer_buffer_length);
-
-		usb_kill_urb(urb);
-		retval = status == -ENOENT ? -ETIMEDOUT : status;
 	} else
-		retval = status;
+		retval = ctx.status;
 out:
 	if (actual_length)
 		*actual_length = urb->actual_length;
@@ -411,15 +417,22 @@ int usb_sg_init (
 		 * Some systems need to revert to PIO when DMA is temporarily
 		 * unavailable.  For their sakes, both transfer_buffer and
 		 * transfer_dma are set when possible.  However this can only
-		 * work on systems without HIGHMEM, since DMA buffers located
-		 * in high memory are not directly addressable by the CPU for
-		 * PIO ... so when HIGHMEM is in use, transfer_buffer is NULL
+		 * work on systems without:
+		 *
+		 *  - HIGHMEM, since DMA buffers located in high memory are
+		 *    not directly addressable by the CPU for PIO;
+		 *
+		 *  - IOMMU, since dma_map_sg() is allowed to use an IOMMU to
+		 *    make virtually discontiguous buffers be "dma-contiguous"
+		 *    so that PIO and DMA need diferent numbers of URBs.
+		 *
+		 * So when HIGHMEM or IOMMU are in use, transfer_buffer is NULL
 		 * to prevent stale pointers and to help spot bugs.
 		 */
 		if (dma) {
 			io->urbs [i]->transfer_dma = sg_dma_address (sg + i);
 			len = sg_dma_len (sg + i);
-#ifdef CONFIG_HIGHMEM
+#if defined(CONFIG_HIGHMEM) || defined(CONFIG_IOMMU)
 			io->urbs[i]->transfer_buffer = NULL;
 #else
 			io->urbs[i]->transfer_buffer =

drivers/usb/core/quirks.c

@@ -30,18 +30,40 @@
 static const struct usb_device_id usb_quirk_list[] = {
 	/* HP 5300/5370C scanner */
 	{ USB_DEVICE(0x03f0, 0x0701), .driver_info = USB_QUIRK_STRING_FETCH_255 },
+	/* Acer Peripherals Inc. (now BenQ Corp.) Prisa 640BU */
+	{ USB_DEVICE(0x04a5, 0x207e), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
 	/* Benq S2W 3300U */
 	{ USB_DEVICE(0x04a5, 0x20b0), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
+	/* Canon, Inc. CanoScan N1240U/LiDE30 */
+	{ USB_DEVICE(0x04a9, 0x220e), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
+	/* Canon, Inc. CanoScan N650U/N656U */
+	{ USB_DEVICE(0x04a9, 0x2206), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
+	/* Canon, Inc. CanoScan 1220U */
+	{ USB_DEVICE(0x04a9, 0x2207), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
+	/* Canon, Inc. CanoScan N670U/N676U/LiDE 20 */
+	{ USB_DEVICE(0x04a9, 0x220d), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
+	/* old Cannon scanner */
+	{ USB_DEVICE(0x04a9, 0x2220), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
 	/* Seiko Epson Corp. Perfection 1200 */
 	{ USB_DEVICE(0x04b8, 0x0104), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
+	/* Seiko Epson Corp. Perfection 660 */
+	{ USB_DEVICE(0x04b8, 0x0114), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
+	/* Epson Perfection 1260 Photo */
+	{ USB_DEVICE(0x04b8, 0x011d), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
 	/* Seiko Epson Corp - Perfection 1670 */
 	{ USB_DEVICE(0x04b8, 0x011f), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
+	/* EPSON Perfection 2480 */
+	{ USB_DEVICE(0x04b8, 0x0121), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
+	/* Seiko Epson Corp.*/
+	{ USB_DEVICE(0x04b8, 0x0122), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
 	/* Samsung ML-2510 Series printer */
 	{ USB_DEVICE(0x04e8, 0x327e), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
 	/* Elsa MicroLink 56k (V.250) */
 	{ USB_DEVICE(0x05cc, 0x2267), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
 	/* Ultima Electronics Corp.*/
 	{ USB_DEVICE(0x05d8, 0x4005), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
+	/* Agfa Snapscan1212u */
+	{ USB_DEVICE(0x06bd, 0x2061), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
 	/* Umax [hex] Astra 3400U */
 	{ USB_DEVICE(0x1606, 0x0060), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
 

drivers/usb/gadget/config.c

@@ -50,7 +50,7 @@ usb_descriptor_fillbuf(void *buf, unsigned buflen,
 		return -EINVAL;
 
 	/* fill buffer from src[] until null descriptor ptr */
-	for (; 0 != *src; src++) {
+	for (; NULL != *src; src++) {
 		unsigned		len = (*src)->bLength;
 
 		if (len > buflen)

drivers/usb/gadget/epautoconf.c

@@ -71,7 +71,7 @@ ep_matches (
 	u16		max;
 
 	/* endpoint already claimed? */
-	if (0 != ep->driver_data)
+	if (NULL != ep->driver_data)
 		return 0;
 
 	/* only support ep0 for portable CONTROL traffic */

drivers/usb/gadget/ether.c

@@ -1723,7 +1723,8 @@ rx_submit (struct eth_dev *dev, struct usb_request *req, gfp_t gfp_flags)
 		size += sizeof (struct rndis_packet_msg_type);
 	size -= size % dev->out_ep->maxpacket;
 
-	if ((skb = alloc_skb (size + NET_IP_ALIGN, gfp_flags)) == 0) {
+	skb = alloc_skb(size + NET_IP_ALIGN, gfp_flags);
+	if (skb == NULL) {
 		DEBUG (dev, "no rx skb\n");
 		goto enomem;
 	}

drivers/usb/gadget/inode.c

@@ -964,7 +964,7 @@ static int setup_req (struct usb_ep *ep, struct usb_request *req, u16 len)
 	}
 	if (len > sizeof (dev->rbuf))
 		req->buf = kmalloc(len, GFP_ATOMIC);
-	if (req->buf == 0) {
+	if (req->buf == NULL) {
 		req->buf = dev->rbuf;
 		return -ENOMEM;
 	}
@@ -1394,7 +1394,7 @@ gadgetfs_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
 	dev->setup_abort = 0;
 	if (dev->state == STATE_DEV_UNCONNECTED) {
 #ifdef	CONFIG_USB_GADGET_DUALSPEED
-		if (gadget->speed == USB_SPEED_HIGH && dev->hs_config == 0) {
+		if (gadget->speed == USB_SPEED_HIGH && dev->hs_config == NULL) {
 			spin_unlock(&dev->lock);
 			ERROR (dev, "no high speed config??\n");
 			return -EINVAL;

drivers/usb/gadget/m66592-udc.c

@@ -1299,7 +1299,7 @@ static int m66592_queue(struct usb_ep *_ep, struct usb_request *_req,
 	req->req.actual = 0;
 	req->req.status = -EINPROGRESS;
 
-	if (ep->desc == 0)	/* control */
+	if (ep->desc == NULL)	/* control */
 		start_ep0(ep, req);
 	else {
 		if (request && !ep->busy)

drivers/usb/gadget/pxa2xx_udc.c

@@ -93,8 +93,6 @@ static const char driver_name [] = "pxa2xx_udc";
 static const char ep0name [] = "ep0";
 
 
-// #define	DISABLE_TEST_MODE
-
 #ifdef CONFIG_ARCH_IXP4XX
 
 /* cpu-specific register addresses are compiled in to this code */
@@ -113,17 +111,6 @@ static const char ep0name [] = "ep0";
 #define SIZE_STR	""
 #endif
 
-#ifdef DISABLE_TEST_MODE
-/* (mode == 0) == no undocumented chip tweaks
- * (mode & 1)  == double buffer bulk IN
- * (mode & 2)  == double buffer bulk OUT
- * ... so mode = 3 (or 7, 15, etc) does it for both
- */
-static ushort fifo_mode = 0;
-module_param(fifo_mode, ushort, 0);
-MODULE_PARM_DESC (fifo_mode, "pxa2xx udc fifo mode");
-#endif
-
 /* ---------------------------------------------------------------------------
  *	endpoint related parts of the api to the usb controller hardware,
  *	used by gadget driver; and the inner talker-to-hardware core.
@@ -1252,23 +1239,6 @@ static void udc_enable (struct pxa2xx_udc *dev)
 		UDC_RES2 = 0x00;
 	}
 
-#ifdef	DISABLE_TEST_MODE
-	/* "test mode" seems to have become the default in later chip
-	 * revs, preventing double buffering (and invalidating docs).
-	 * this EXPERIMENT enables it for bulk endpoints by tweaking
-	 * undefined/reserved register bits (that other drivers clear).
-	 * Belcarra code comments noted this usage.
-	 */
-	if (fifo_mode & 1) {	/* IN endpoints */
-		UDC_RES1 |= USIR0_IR1|USIR0_IR6;
-		UDC_RES2 |= USIR1_IR11;
-	}
-	if (fifo_mode & 2) {	/* OUT endpoints */
-		UDC_RES1 |= USIR0_IR2|USIR0_IR7;
-		UDC_RES2 |= USIR1_IR12;
-	}
-#endif
-
 	/* enable suspend/resume and reset irqs */
 	udc_clear_mask_UDCCR(UDCCR_SRM | UDCCR_REM);
 

drivers/usb/gadget/zero.c

@@ -653,7 +653,8 @@ set_source_sink_config (struct zero_dev *dev, gfp_t gfp_flags)
 			result = usb_ep_enable (ep, d);
 			if (result == 0) {
 				ep->driver_data = dev;
-				if (source_sink_start_ep (ep, gfp_flags) != 0) {
+				if (source_sink_start_ep(ep, gfp_flags)
+						!= NULL) {
 					dev->in_ep = ep;
 					continue;
 				}
@@ -667,7 +668,8 @@ set_source_sink_config (struct zero_dev *dev, gfp_t gfp_flags)
 			result = usb_ep_enable (ep, d);
 			if (result == 0) {
 				ep->driver_data = dev;
-				if (source_sink_start_ep (ep, gfp_flags) != 0) {
+				if (source_sink_start_ep(ep, gfp_flags)
+						!= NULL) {
 					dev->out_ep = ep;
 					continue;
 				}

drivers/usb/serial/cp2101.c

@@ -356,7 +356,7 @@ static void cp2101_get_termios (struct usb_serial_port *port)
 
 	dbg("%s - port %d", __FUNCTION__, port->number);
 
-	if ((!port->tty) || (!port->tty->termios)) {
+	if (!port->tty || !port->tty->termios) {
 		dbg("%s - no tty structures", __FUNCTION__);
 		return;
 	}
@@ -526,50 +526,35 @@ static void cp2101_set_termios (struct usb_serial_port *port,
 		return;
 	}
 	cflag = port->tty->termios->c_cflag;
-
-	/* Check that they really want us to change something */
-	if (old_termios) {
-		if ((cflag == old_termios->c_cflag) &&
-				(RELEVANT_IFLAG(port->tty->termios->c_iflag)
-				== RELEVANT_IFLAG(old_termios->c_iflag))) {
-			dbg("%s - nothing to change...", __FUNCTION__);
-			return;
-		}
-
 	old_cflag = old_termios->c_cflag;
-	}
+	baud = tty_get_baud_rate(port->tty);
 
 	/* If the baud rate is to be updated*/
-	if ((cflag & CBAUD) != (old_cflag & CBAUD)) {
-		switch (cflag & CBAUD) {
-			/*
-			 * The baud rates which are commented out below
-			 * appear to be supported by the device
-			 * but are non-standard
-			 */
-			case B0:	baud = 0;	break;
-			case B600:	baud = 600;	break;
-			case B1200:	baud = 1200;	break;
-			case B1800:	baud = 1800;	break;
-			case B2400:	baud = 2400;	break;
-			case B4800:	baud = 4800;	break;
-			/*case B7200:	baud = 7200;	break;*/
-			case B9600:	baud = 9600;	break;
-			/*ase B14400:	baud = 14400;	break;*/
-			case B19200:	baud = 19200;	break;
-			/*case B28800:	baud = 28800;	break;*/
-			case B38400:	baud = 38400;	break;
-			/*case B55854:	baud = 55054;	break;*/
-			case B57600:	baud = 57600;	break;
-			case B115200:	baud = 115200;	break;
-			/*case B127117:	baud = 127117;	break;*/
-			case B230400:	baud = 230400;	break;
-			case B460800:	baud = 460800;	break;
-			case B921600:	baud = 921600;	break;
-			/*case B3686400:	baud = 3686400;	break;*/
+	if (baud != tty_termios_baud_rate(old_termios)) {
+		switch (baud) {
+			case 0:
+			case 600:
+			case 1200:
+			case 1800:
+			case 2400:
+			case 4800:
+			case 7200:
+			case 9600:
+			case 14400:
+			case 19200:
+			case 28800:
+			case 38400:
+			case 55854:
+			case 57600:
+			case 115200:
+			case 127117:
+			case 230400:
+			case 460800:
+			case 921600:
+			case 3686400:
+				break;
 			default:
-				dev_err(&port->dev, "cp2101 driver does not "
-					"support the baudrate requested\n");
+				baud = 9600;
 				break;
 		}
 

drivers/usb/serial/io_edgeport.c

@@ -2366,9 +2366,8 @@ static int send_cmd_write_baud_rate (struct edgeport_port *edge_port, int baudRa
 	int status;
 	unsigned char number = edge_port->port->number - edge_port->port->serial->minor;
 
-	if ((!edge_serial->is_epic) ||
-	    ((edge_serial->is_epic) &&
-	     (!edge_serial->epic_descriptor.Supports.IOSPSetBaudRate))) {
+	if (edge_serial->is_epic &&
+	    !edge_serial->epic_descriptor.Supports.IOSPSetBaudRate) {
 		dbg("SendCmdWriteBaudRate - NOT Setting baud rate for port = %d, baud = %d",
 		    edge_port->port->number, baudRate);
 		return 0;
@@ -2461,18 +2460,16 @@ static int send_cmd_write_uart_register (struct edgeport_port *edge_port, __u8 r
 
 	dbg("%s - write to %s register 0x%02x", (regNum == MCR) ? "MCR" : "LCR", __FUNCTION__, regValue);
 
-	if ((!edge_serial->is_epic) ||
-	    ((edge_serial->is_epic) &&
-	     (!edge_serial->epic_descriptor.Supports.IOSPWriteMCR) &&
-	     (regNum == MCR))) {
+	if (edge_serial->is_epic &&
+	    !edge_serial->epic_descriptor.Supports.IOSPWriteMCR &&
+	    regNum == MCR) {
 		dbg("SendCmdWriteUartReg - Not writing to MCR Register");
 		return 0;
 	}
 
-	if ((!edge_serial->is_epic) ||
-	    ((edge_serial->is_epic) &&
-	     (!edge_serial->epic_descriptor.Supports.IOSPWriteLCR) &&
-	     (regNum == LCR))) {
+	if (edge_serial->is_epic &&
+	    !edge_serial->epic_descriptor.Supports.IOSPWriteLCR &&
+	    regNum == LCR) {
 		dbg ("SendCmdWriteUartReg - Not writing to LCR Register");
 		return 0;
 	}

drivers/usb/serial/mct_u232.c

@@ -184,21 +184,21 @@ struct mct_u232_private {
  * we do not know how to support. We ignore them for the moment.
  * XXX Rate-limit the error message, it's user triggerable.
  */
-static int mct_u232_calculate_baud_rate(struct usb_serial *serial, int value)
+static int mct_u232_calculate_baud_rate(struct usb_serial *serial, speed_t value)
 {
 	if (le16_to_cpu(serial->dev->descriptor.idProduct) == MCT_U232_SITECOM_PID
 	  || le16_to_cpu(serial->dev->descriptor.idProduct) == MCT_U232_BELKIN_F5U109_PID) {
 		switch (value) {
-		case    B300: return 0x01;
-		case    B600: return 0x02; /* this one not tested */
-		case   B1200: return 0x03;
-		case   B2400: return 0x04;
-		case   B4800: return 0x06;
-		case   B9600: return 0x08;
-		case  B19200: return 0x09;
-		case  B38400: return 0x0a;
-		case  B57600: return 0x0b;
-		case B115200: return 0x0c;
+		case    300: return 0x01;
+		case    600: return 0x02; /* this one not tested */
+		case   1200: return 0x03;
+		case   2400: return 0x04;
+		case   4800: return 0x06;
+		case   9600: return 0x08;
+		case  19200: return 0x09;
+		case  38400: return 0x0a;
+		case  57600: return 0x0b;
+		case 115200: return 0x0c;
 		default:
 			err("MCT USB-RS232: unsupported baudrate request 0x%x,"
 			    " using default of B9600", value);
@@ -206,16 +206,16 @@ static int mct_u232_calculate_baud_rate(struct usb_serial *serial, int value)
 		}
 	} else {
 		switch (value) {
-		case    B300: value =     300; break;
-		case    B600: value =     600; break;
-		case   B1200: value =    1200; break;
-		case   B2400: value =    2400; break;
-		case   B4800: value =    4800; break;
-		case   B9600: value =    9600; break;
-		case  B19200: value =   19200; break;
-		case  B38400: value =   38400; break;
-		case  B57600: value =   57600; break;
-		case B115200: value =  115200; break;
+			case 300: break;
+			case 600: break;
+			case 1200: break;
+			case 2400: break;
+			case 4800: break;
+			case 9600: break;
+			case 19200: break;
+			case 38400: break;
+			case 57600: break;
+			case 115200: break;
 			default:
 				err("MCT USB-RS232: unsupported baudrate request 0x%x,"
 				    " using default of B9600", value);
@@ -226,7 +226,7 @@ static int mct_u232_calculate_baud_rate(struct usb_serial *serial, int value)
 }
 
 static int mct_u232_set_baud_rate(struct usb_serial *serial, struct usb_serial_port *port,
-				  int value)
+				  speed_t value)
 {
 	__le32 divisor;
         int rc;
@@ -634,7 +634,7 @@ static void mct_u232_set_termios (struct usb_serial_port *port,
 		mct_u232_set_modem_ctrl(serial, control_state);
 	}
 
-	mct_u232_set_baud_rate(serial, port, cflag & CBAUD);
+	mct_u232_set_baud_rate(serial, port, tty_get_baud_rate(port->tty));
 
 	if ((cflag & CBAUD) == B0 ) {
 		dbg("%s: baud is B0", __FUNCTION__);

drivers/usb/serial/mct_u232.h

@@ -79,7 +79,7 @@
  * and "Intel solution". They are the regular MCT and "Sitecom" for us.
  * This is pointless to document in the header, see the code for the bits.
  */
-static int mct_u232_calculate_baud_rate(struct usb_serial *serial, int value);
+static int mct_u232_calculate_baud_rate(struct usb_serial *serial, speed_t value);
 
 /*
  * Line Control Register (LCR)

drivers/usb/serial/sierra.c

@@ -45,7 +45,7 @@ enum devicetype {
 	DEVICE_INSTALLER =	2,
 };
 
-int sierra_set_power_state(struct usb_device *udev, __u16 swiState)
+static int sierra_set_power_state(struct usb_device *udev, __u16 swiState)
 {
 	int result;
 	dev_dbg(&udev->dev, "%s", "SET POWER STATE");
@@ -60,7 +60,7 @@ int sierra_set_power_state(struct usb_device *udev, __u16 swiState)
 	return result;
 }
 
-int sierra_set_ms_mode(struct usb_device *udev, __u16 eSocMode)
+static int sierra_set_ms_mode(struct usb_device *udev, __u16 eSocMode)
 {
 	int result;
 	dev_dbg(&udev->dev, "%s", "DEVICE MODE SWITCH");
@@ -75,7 +75,8 @@ int sierra_set_ms_mode(struct usb_device *udev, __u16 eSocMode)
 	return result;
 }
 
-int sierra_probe(struct usb_interface *iface, const struct usb_device_id *id)
+static int sierra_probe(struct usb_interface *iface,
+			const struct usb_device_id *id)
 {
 	int result;
 	struct usb_device *udev;

drivers/usb/serial/usb-serial.c

@@ -60,19 +60,19 @@ static struct usb_driver usb_serial_driver = {
 
 static int debug;
 static struct usb_serial *serial_table[SERIAL_TTY_MINORS];	/* initially all NULL */
-static spinlock_t table_lock;
+static DEFINE_MUTEX(table_lock);
 static LIST_HEAD(usb_serial_driver_list);
 
 struct usb_serial *usb_serial_get_by_index(unsigned index)
 {
 	struct usb_serial *serial;
 
-	spin_lock(&table_lock);
+	mutex_lock(&table_lock);
 	serial = serial_table[index];
 
 	if (serial)
 		kref_get(&serial->kref);
-	spin_unlock(&table_lock);
+	mutex_unlock(&table_lock);
 	return serial;
 }
 
@@ -84,7 +84,7 @@ static struct usb_serial *get_free_serial (struct usb_serial *serial, int num_po
 	dbg("%s %d", __FUNCTION__, num_ports);
 
 	*minor = 0;
-	spin_lock(&table_lock);
+	mutex_lock(&table_lock);
 	for (i = 0; i < SERIAL_TTY_MINORS; ++i) {
 		if (serial_table[i])
 			continue;
@@ -106,10 +106,10 @@ static struct usb_serial *get_free_serial (struct usb_serial *serial, int num_po
 			serial_table[i] = serial;
 			serial->port[j++]->number = i;
 		}
-		spin_unlock(&table_lock);
+		mutex_unlock(&table_lock);
 		return serial;
 	}
-	spin_unlock(&table_lock);
+	mutex_unlock(&table_lock);
 	return NULL;
 }
 
@@ -172,9 +172,9 @@ static void destroy_serial(struct kref *kref)
 
 void usb_serial_put(struct usb_serial *serial)
 {
-	spin_lock(&table_lock);
+	mutex_lock(&table_lock);
 	kref_put(&serial->kref, destroy_serial);
-	spin_unlock(&table_lock);
+	mutex_unlock(&table_lock);
 }
 
 /*****************************************************************************
@@ -1077,16 +1077,17 @@ int usb_serial_suspend(struct usb_interface *intf, pm_message_t message)
 	struct usb_serial_port *port;
 	int i, r = 0;
 
-	if (serial) {
+	if (!serial) /* device has been disconnected */
+		return 0;
+
 	for (i = 0; i < serial->num_ports; ++i) {
 		port = serial->port[i];
 		if (port)
 			kill_traffic(port);
 	}
-	}
 
 	if (serial->type->suspend)
-		serial->type->suspend(serial, message);
+		r = serial->type->suspend(serial, message);
 
 	return r;
 }
@@ -1128,7 +1129,6 @@ static int __init usb_serial_init(void)
 		return -ENOMEM;
 
 	/* Initialize our global data */
-	spin_lock_init(&table_lock);
 	for (i = 0; i < SERIAL_TTY_MINORS; ++i) {
 		serial_table[i] = NULL;
 	}

drivers/usb/storage/unusual_devs.h

@@ -320,6 +320,13 @@ UNUSUAL_DEV(  0x04b0, 0x0401, 0x0200, 0x0200,
 		US_SC_DEVICE, US_PR_DEVICE, NULL,
 		US_FL_FIX_CAPACITY),
 
+/* Reported by Milinevsky Dmitry <niam.niam@gmail.com> */
+UNUSUAL_DEV(  0x04b0, 0x0409, 0x0100, 0x0100,
+		"NIKON",
+		"NIKON DSC D50",
+		US_SC_DEVICE, US_PR_DEVICE, NULL,
+		US_FL_FIX_CAPACITY),
+
 /* Reported by Andreas Bockhold <andreas@bockionline.de> */
 UNUSUAL_DEV(  0x04b0, 0x0405, 0x0100, 0x0100,
 		"NIKON",
@@ -1357,6 +1364,20 @@ UNUSUAL_DEV(  0x0f19, 0x0105, 0x0100, 0x0100,
 		US_SC_DEVICE, US_PR_DEVICE, NULL,
 		US_FL_IGNORE_RESIDUE ),
 
+/* Jeremy Katz <katzj@redhat.com>:
+ * The Blackberry Pearl can run in two modes; a usb-storage only mode
+ * and a mode that allows access via mass storage and to its database.
+ * The berry_charge module will set the device to dual mode and thus we
+ * should ignore its native mode if that module is built
+ */
+#ifdef CONFIG_USB_BERRY_CHARGE
+UNUSUAL_DEV(  0x0fca, 0x0006, 0x0001, 0x0001,
+		"RIM",
+		"Blackberry Pearl",
+		US_SC_DEVICE, US_PR_DEVICE, NULL,
+		US_FL_IGNORE_DEVICE ),
+#endif
+
 /* Reported by Michael Stattmann <michael@stattmann.com> */
 UNUSUAL_DEV(  0x0fce, 0xd008, 0x0000, 0x0000,
 		"Sony Ericsson",

include/linux/usb.h

@@ -94,6 +94,7 @@ enum usb_interface_condition {
  * 	endpoint configurations.  They will be in no particular order.
  * @num_altsetting: number of altsettings defined.
  * @cur_altsetting: the current altsetting.
+ * @intf_assoc: interface association descriptor
  * @driver: the USB driver that is bound to this interface.
  * @minor: the minor number assigned to this interface, if this
  *	interface is bound to a driver that uses the USB major number.
@@ -213,6 +214,7 @@ struct usb_interface_cache {
  * @desc: the device's configuration descriptor.
  * @string: pointer to the cached version of the iConfiguration string, if
  *	present for this configuration.
+ * @intf_assoc: list of any interface association descriptors in this config
  * @interface: array of pointers to usb_interface structures, one for each
  *	interface in the configuration.  The number of interfaces is stored
  *	in desc.bNumInterfaces.  These pointers are valid only while the