Fix over-eager ioctl number fix. _IOC() does want the sizeof().

include/linux/input.h

@@ -73,7 +73,7 @@ struct input_absinfo {
 #define EVIOCGABS(abs)		_IOR('E', 0x40 + abs, struct input_absinfo)		/* get abs value/limits */
 #define EVIOCSABS(abs)		_IOW('E', 0xc0 + abs, struct input_absinfo)		/* set abs value/limits */
 
-#define EVIOCSFF		_IOC(_IOC_WRITE, 'E', 0x80, size_t)	/* send a force effect to a force feedback device */
+#define EVIOCSFF		_IOC(_IOC_WRITE, 'E', 0x80, sizeof(struct ff_effect))	/* send a force effect to a force feedback device */
 #define EVIOCRMFF		_IOW('E', 0x81, int)			/* Erase a force effect */
 #define EVIOCGEFFECTS		_IOR('E', 0x84, int)			/* Report number of effects playable at the same time */