[media] cx231xx: silence uninitialized variable warning

We print an uninitialized "actlen" variable on the error path.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/usb/cx231xx/cx231xx-core.c

@@ -752,7 +752,8 @@ EXPORT_SYMBOL_GPL(cx231xx_set_mode);
 int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
 {
 	int errCode = 0;
-	int actlen, ret = -ENOMEM;
+	int actlen = -1;
+	int ret = -ENOMEM;
 	u32 *buffer;
 
 	buffer = kzalloc(4096, GFP_KERNEL);