x86: use cpu_clear in remove_cpu_from_maps

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 687376a..2745657 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1311,7 +1311,7 @@
 	cpu_clear(cpu, cpu_callout_map);
 	cpu_clear(cpu, cpu_callin_map);
 	/* was set by cpu_init() */
-	clear_bit(cpu, (unsigned long *)&cpu_initialized);
+	cpu_clear(cpu, cpu_initialized);
 	numa_remove_cpu(cpu);
 }