KVM: x86: fix memory leak in vmx_init

Free vmx_msr_bitmap_longmode_x2apic and vmx_msr_bitmap_longmode if
kvm_init() fails.
Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>

arch/x86/kvm/vmx.c

@@ -7741,7 +7741,7 @@ static int __init vmx_init(void)
 	r = kvm_init(&vmx_x86_ops, sizeof(struct vcpu_vmx),
 		     __alignof__(struct vcpu_vmx), THIS_MODULE);
 	if (r)
-		goto out3;
+		goto out5;
 
 #ifdef CONFIG_KEXEC
 	rcu_assign_pointer(crash_vmclear_loaded_vmcss,
@@ -7789,6 +7789,8 @@ static int __init vmx_init(void)
 
 	return 0;
 
+out5:
+	free_page((unsigned long)vmx_msr_bitmap_longmode_x2apic);
 out4:
 	free_page((unsigned long)vmx_msr_bitmap_longmode);
 out3: