X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fusb%2Fmisc%2Fldusb.c;h=189a9db035090fb35cf4c320d6dffd5a0d63c8db;hb=e6d9f0fb5f9ceca5f4945f12cd3e71efd3382c13;hp=11580e81e2c633b0163214680342334105b64dc8;hpb=bf16ae250999e76aff0491a362073a552db965fc;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/usb/misc/ldusb.c b/drivers/usb/misc/ldusb.c
index 11580e81e2c..189a9db0350 100644
--- a/drivers/usb/misc/ldusb.c
+++ b/drivers/usb/misc/ldusb.c
@@ -63,9 +63,6 @@
 #define USB_DEVICE_ID_VERNIER_CYCLOPS	0x0004
 #define USB_DEVICE_ID_VERNIER_LCSPEC	0x0006
 
-#define USB_VENDOR_ID_MICROCHIP		0x04d8
-#define USB_DEVICE_ID_PICDEM		0x000c
-
 #ifdef CONFIG_USB_DYNAMIC_MINORS
 #define USB_LD_MINOR_BASE	0
 #else
@@ -92,7 +89,6 @@ static struct usb_device_id ld_usb_table [] = {
 	{ USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
 	{ USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
 	{ USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
-	{ USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICDEM) },
 	{ USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
 	{ }					/* Terminating entry */
 };
@@ -148,7 +144,7 @@ MODULE_PARM_DESC(min_interrupt_out_interval, "Minimum interrupt out interval in
 
 /* Structure to hold all of our device specific stuff */
 struct ld_usb {
-	struct semaphore	sem;		/* locks this structure */
+	struct mutex		mutex;		/* locks this structure */
 	struct usb_interface*	intf;		/* save off the usb interface pointer */
 
 	int			open_count;	/* number of times this port has been opened */
@@ -319,7 +315,7 @@ static int ld_usb_open(struct inode *inode, struct file *file)
 		return -ENODEV;
 
 	/* lock this device */
-	if (down_interruptible(&dev->sem))
+	if (mutex_lock_interruptible(&dev->mutex))
 		return -ERESTARTSYS;
 
 	/* allow opening only once */
@@ -358,7 +354,7 @@ static int ld_usb_open(struct inode *inode, struct file *file)
 	file->private_data = dev;
 
 unlock_exit:
-	up(&dev->sem);
+	mutex_unlock(&dev->mutex);
 
 	return retval;
 }
@@ -378,7 +374,7 @@ static int ld_usb_release(struct inode *inode, struct file *file)
 		goto exit;
 	}
 
-	if (down_interruptible(&dev->sem)) {
+	if (mutex_lock_interruptible(&dev->mutex)) {
 		retval = -ERESTARTSYS;
 		goto exit;
 	}
@@ -389,7 +385,7 @@ static int ld_usb_release(struct inode *inode, struct file *file)
 	}
 	if (dev->intf == NULL) {
 		/* the device was unplugged before the file was released */
-		up(&dev->sem);
+		mutex_unlock(&dev->mutex);
 		/* unlock here as ld_usb_delete frees dev */
 		ld_usb_delete(dev);
 		goto exit;
@@ -402,7 +398,7 @@ static int ld_usb_release(struct inode *inode, struct file *file)
 	dev->open_count = 0;
 
 unlock_exit:
-	up(&dev->sem);
+	mutex_unlock(&dev->mutex);
 
 exit:
 	return retval;
@@ -448,7 +444,7 @@ static ssize_t ld_usb_read(struct file *file, char __user *buffer, size_t count,
 		goto exit;
 
 	/* lock this object */
-	if (down_interruptible(&dev->sem)) {
+	if (mutex_lock_interruptible(&dev->mutex)) {
 		retval = -ERESTARTSYS;
 		goto exit;
 	}
@@ -505,7 +501,7 @@ static ssize_t ld_usb_read(struct file *file, char __user *buffer, size_t count,
 
 unlock_exit:
 	/* unlock the device */
-	up(&dev->sem);
+	mutex_unlock(&dev->mutex);
 
 exit:
 	return retval;
@@ -528,7 +524,7 @@ static ssize_t ld_usb_write(struct file *file, const char __user *buffer,
 		goto exit;
 
 	/* lock this object */
-	if (down_interruptible(&dev->sem)) {
+	if (mutex_lock_interruptible(&dev->mutex)) {
 		retval = -ERESTARTSYS;
 		goto exit;
 	}
@@ -602,7 +598,7 @@ static ssize_t ld_usb_write(struct file *file, const char __user *buffer,
 
 unlock_exit:
 	/* unlock the device */
-	up(&dev->sem);
+	mutex_unlock(&dev->mutex);
 
 exit:
 	return retval;
@@ -651,7 +647,7 @@ static int ld_usb_probe(struct usb_interface *intf, const struct usb_device_id *
 		dev_err(&intf->dev, "Out of memory\n");
 		goto exit;
 	}
-	init_MUTEX(&dev->sem);
+	mutex_init(&dev->mutex);
 	spin_lock_init(&dev->rbsl);
 	dev->intf = intf;
 	init_waitqueue_head(&dev->read_wait);
@@ -765,15 +761,15 @@ static void ld_usb_disconnect(struct usb_interface *intf)
 	/* give back our minor */
 	usb_deregister_dev(intf, &ld_usb_class);
 
-	down(&dev->sem);
+	mutex_lock(&dev->mutex);
 
 	/* if the device is not opened, then we clean up right now */
 	if (!dev->open_count) {
-		up(&dev->sem);
+		mutex_unlock(&dev->mutex);
 		ld_usb_delete(dev);
 	} else {
 		dev->intf = NULL;
-		up(&dev->sem);
+		mutex_unlock(&dev->mutex);
 	}
 
 	dev_info(&intf->dev, "LD USB Device #%d now disconnected\n",