[PATCH] powerpc: unified signature of timer_interrupt() between ppc32/ppc64

On ppc64 timer_interrupt() returned a value that was never used.  Changed
the ppc64 version of timer_interrupt() to no longer return a value so
that the signatures between ppc32 & ppc64 match.  This will simplify
future merging of arch/powerpc.

Signed-off-by: Kumar Gala <kumar.gala@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/ppc64/kernel/time.c b/arch/ppc64/kernel/time.c
index 9939c20..fb4bf0a 100644
--- a/arch/ppc64/kernel/time.c
+++ b/arch/ppc64/kernel/time.c
@@ -319,7 +319,7 @@
  * timer_interrupt - gets called when the decrementer overflows,
  * with interrupts disabled.
  */
-int timer_interrupt(struct pt_regs * regs)
+void timer_interrupt(struct pt_regs * regs)
 {
 	int next_dec;
 	unsigned long cur_tb;
@@ -377,8 +377,6 @@
 	}
 
 	irq_exit();
-
-	return 1;
 }
 
 /*