[media] [staging] lirc_imon: fix unused-but-set warnings

Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/staging/lirc/lirc_imon.c

@@ -672,8 +672,6 @@ static void imon_incoming_packet(struct imon_context *context,
 static void usb_rx_callback(struct urb *urb)
 {
 	struct imon_context *context;
-	unsigned char *buf;
-	int len;
 	int intfnum = 0;
 
 	if (!urb)
@@ -683,9 +681,6 @@ static void usb_rx_callback(struct urb *urb)
 	if (!context)
 		return;
 
-	buf = urb->transfer_buffer;
-	len = urb->actual_length;
-
 	switch (urb->status) {
 	case -ENOENT:		/* usbcore unlink successful! */
 		return;
@@ -728,7 +723,6 @@ static int imon_probe(struct usb_interface *interface,
 	int ir_ep_found = 0;
 	int alloc_status = 0;
 	int vfd_proto_6p = 0;
-	int code_length;
 	struct imon_context *context = NULL;
 	int i;
 	u16 vendor, product;
@@ -749,8 +743,6 @@ static int imon_probe(struct usb_interface *interface,
 	else
 		context->display = 1;
 
-	code_length = BUF_CHUNK_SIZE * 8;
-
 	usbdev     = usb_get_dev(interface_to_usbdev(interface));
 	iface_desc = interface->cur_altsetting;
 	num_endpts = iface_desc->desc.bNumEndpoints;
@@ -856,7 +848,7 @@ static int imon_probe(struct usb_interface *interface,
 
 	strcpy(driver->name, MOD_NAME);
 	driver->minor = -1;
-	driver->code_length = sizeof(int) * 8;
+	driver->code_length = BUF_CHUNK_SIZE * 8;
 	driver->sample_rate = 0;
 	driver->features = LIRC_CAN_REC_MODE2;
 	driver->data = context;