[PATCH] hpet: remove superfluous indirections

In the hpet_ioctl_common() function, devp->hd_hpets is already cached in the
hpetp variable, so we can use just that.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
Cc: Bob Picco <bob.picco@hp.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

drivers/char/hpet.c

@@ -501,8 +501,8 @@ hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg, int kernel)
 				info.hi_ireqfreq = 0;
 			info.hi_flags =
 			    readq(&timer->hpet_config) & Tn_PER_INT_CAP_MASK;
-			info.hi_hpet = devp->hd_hpets->hp_which;
-			info.hi_timer = devp - devp->hd_hpets->hp_dev;
+			info.hi_hpet = hpetp->hp_which;
+			info.hi_timer = devp - hpetp->hp_dev;
 			if (kernel)
 				memcpy((void *)arg, &info, sizeof(info));
 			else