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path: root/drivers/usb/misc/idmouse.c
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Diffstat (limited to 'drivers/usb/misc/idmouse.c')
-rw-r--r--drivers/usb/misc/idmouse.c22
1 files changed, 9 insertions, 13 deletions
diff --git a/drivers/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c
index 8e6e195a22ba..c9418535bef8 100644
--- a/drivers/usb/misc/idmouse.c
+++ b/drivers/usb/misc/idmouse.c
@@ -125,12 +125,12 @@ static DEFINE_MUTEX(disconnect_mutex);
static int idmouse_create_image(struct usb_idmouse *dev)
{
- int bytes_read = 0;
- int bulk_read = 0;
- int result = 0;
+ int bytes_read;
+ int bulk_read;
+ int result;
memcpy(dev->bulk_in_buffer, HEADER, sizeof(HEADER)-1);
- bytes_read += sizeof(HEADER)-1;
+ bytes_read = sizeof(HEADER)-1;
/* reset the device and set a fast blink rate */
result = ftip_command(dev, FTIP_RELEASE, 0, 0);
@@ -208,9 +208,9 @@ static inline void idmouse_delete(struct usb_idmouse *dev)
static int idmouse_open(struct inode *inode, struct file *file)
{
- struct usb_idmouse *dev = NULL;
+ struct usb_idmouse *dev;
struct usb_interface *interface;
- int result = 0;
+ int result;
/* prevent disconnects */
mutex_lock(&disconnect_mutex);
@@ -305,7 +305,7 @@ static ssize_t idmouse_read(struct file *file, char __user *buffer, size_t count
loff_t * ppos)
{
struct usb_idmouse *dev;
- int result = 0;
+ int result;
dev = (struct usb_idmouse *) file->private_data;
@@ -329,7 +329,7 @@ static int idmouse_probe(struct usb_interface *interface,
const struct usb_device_id *id)
{
struct usb_device *udev = interface_to_usbdev(interface);
- struct usb_idmouse *dev = NULL;
+ struct usb_idmouse *dev;
struct usb_host_interface *iface_desc;
struct usb_endpoint_descriptor *endpoint;
int result;
@@ -350,11 +350,7 @@ static int idmouse_probe(struct usb_interface *interface,
/* set up the endpoint information - use only the first bulk-in endpoint */
endpoint = &iface_desc->endpoint[0].desc;
- if (!dev->bulk_in_endpointAddr
- && (endpoint->bEndpointAddress & USB_DIR_IN)
- && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
- USB_ENDPOINT_XFER_BULK)) {
-
+ if (!dev->bulk_in_endpointAddr && usb_endpoint_is_bulk_in(endpoint)) {
/* we found a bulk in endpoint */
dev->orig_bi_size = le16_to_cpu(endpoint->wMaxPacketSize);
dev->bulk_in_size = 0x200; /* works _much_ faster */