kvm: Prevent kvm_init from corrupting debugfs structures

Commit Message

Darrick J. Wong Oct. 14, 2009, 11:21 p.m. UTC

None

Patch

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index b7c78a4..7495ce3 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2717,8 +2717,6 @@  int kvm_init(void *opaque, unsigned int vcpu_size,
 	int r;
 	int cpu;
 
-	kvm_init_debug();
-
 	r = kvm_arch_init(opaque);
 	if (r)
 		goto out_fail;
@@ -2785,6 +2783,8 @@  int kvm_init(void *opaque, unsigned int vcpu_size,
 	kvm_preempt_ops.sched_in = kvm_sched_in;
 	kvm_preempt_ops.sched_out = kvm_sched_out;
 
+	kvm_init_debug();
+
 	return 0;
 
 out_free:
@@ -2807,7 +2807,6 @@  out_free_0:
 out:
 	kvm_arch_exit();
 out_fail:
-	kvm_exit_debug();
 	return r;
 }
 EXPORT_SYMBOL_GPL(kvm_init);
@@ -2815,6 +2814,7 @@  EXPORT_SYMBOL_GPL(kvm_init);
 void kvm_exit(void)
 {
 	tracepoint_synchronize_unregister();
+	kvm_exit_debug();
 	misc_deregister(&kvm_dev);
 	kmem_cache_destroy(kvm_vcpu_cache);
 	sysdev_unregister(&kvm_sysdev);
@@ -2824,7 +2824,6 @@  void kvm_exit(void)
 	on_each_cpu(hardware_disable, NULL, 1);
 	kvm_arch_hardware_unsetup();
 	kvm_arch_exit();
-	kvm_exit_debug();
 	free_cpumask_var(cpus_hardware_enabled);
 	__free_page(bad_page);
 }