[PATCH] kvm: do not need hardware_disable when CPU_UP_CANCELED

[Lai Jiangshan <laijs@cn.fujitsu.com>]

When CPU_UP_CANCELED, hardware_enable() has not been called at the CPU
which is going up because raw_notifier_call_chain(CPU_ONLINE)
has not been called for this cpu.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
---
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 5a0cd19..b03f863 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1921,11 +1921,6 @@ static int kvm_cpu_hotplug(struct notifier_block *notifier, unsigned long val,
 		       cpu);
 		hardware_disable(NULL);
 		break;
-	case CPU_UP_CANCELED:
-		printk(KERN_INFO "kvm: disabling virtualization on CPU%d\n",
-		       cpu);
-		smp_call_function_single(cpu, hardware_disable, NULL, 1);
-		break;
 	case CPU_ONLINE:
 		printk(KERN_INFO "kvm: enabling virtualization on CPU%d\n",
 		       cpu);