1 files changed, 4 insertions, 6 deletions

diff --git a/drivers/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c
index c9418535bef8..15c70bd048c4 100644
--- 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;
         }