USB: Remove unneeded void * casts in idmouse.c

The patch removes unneeded void * casts for the following (void *) pointers:
- struct file: private_data

The patch also contains some whitespace and coding style cleanups in the
relevant areas.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c
index c941853..15c70bd 100644 (file)
--- a/drivers/usb/misc/idmouse.c
+++ b/drivers/usb/misc/idmouse.c
@@ -269,7 +269,7 @@ static int idmouse_release(struct inode *inode, struct file *file)
        /* prevent a race condition with open() */
        mutex_lock(&disconnect_mutex);
 
-       dev = (struct usb_idmouse *) file->private_data;
+       dev = file->private_data;
 
        if (dev == NULL) {
                mutex_unlock(&disconnect_mutex);
@@ -304,17 +304,15 @@ static int idmouse_release(struct inode *inode, struct file *file)
 static ssize_t idmouse_read(struct file *file, char __user *buffer, size_t count,
                                loff_t * ppos)
 {
-       struct usb_idmouse *dev;
+       struct usb_idmouse *dev = file->private_data;
        int result;
 
-       dev = (struct usb_idmouse *) file->private_data;
-
        /* lock this object */
-       down (&dev->sem);
+       down(&dev->sem);
 
        /* verify that the device wasn't unplugged */
        if (!dev->present) {
-               up (&dev->sem);
+               up(&dev->sem);
                return -ENODEV;
        }