[PATCH] kernel/hrtimer.c sparse warning fix

fix the following sparse warning:

 kernel/hrtimer.c:665:34: warning: incorrect type in argument 2 (different address spaces)
 kernel/hrtimer.c:665:34:    expected void const *from
 kernel/hrtimer.c:665:34:    got struct timespec [noderef] *<noident><asn:1>
 kernel/hrtimer.c:664:2: warning: dereference of noderef expression
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

kernel/hrtimer.c

@@ -641,7 +641,8 @@ schedule_hrtimer_interruptible(struct hrtimer *timer,
 static long __sched
 nanosleep_restart(struct restart_block *restart, clockid_t clockid)
 {
-	struct timespec __user *rmtp, tu;
+	struct timespec __user *rmtp;
+	struct timespec tu;
 	void *rfn_save = restart->fn;
 	struct hrtimer timer;
 	ktime_t rem;