From: Avi Kivity <avi@qumranet.com>
Date: Sat, 6 Jan 2007 00:36:57 +0000 (-0800)
Subject: [PATCH] KVM: Initialize vcpu->kvm a little earlier
X-Git-Tag: v2.6.20-rc4~22
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=86a2b42e81b8236d9454f5c2d7113a82ed25c735;p=linux-2.6

[PATCH] KVM: Initialize vcpu->kvm a little earlier

Fixes oops on early close of /dev/kvm.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index 6e15aef6c3..a8b425284b 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -230,6 +230,7 @@ static int kvm_dev_open(struct inode *inode, struct file *filp)
 		struct kvm_vcpu *vcpu = &kvm->vcpus[i];
 
 		mutex_init(&vcpu->mutex);
+		vcpu->kvm = kvm;
 		vcpu->mmu.root_hpa = INVALID_PAGE;
 		INIT_LIST_HEAD(&vcpu->free_pages);
 	}
@@ -530,7 +531,6 @@ static int kvm_dev_ioctl_create_vcpu(struct kvm *kvm, int n)
 	vcpu->guest_fx_image = vcpu->host_fx_image + FX_IMAGE_SIZE;
 
 	vcpu->cpu = -1;  /* First load will set up TR */
-	vcpu->kvm = kvm;
 	r = kvm_arch_ops->vcpu_create(vcpu);
 	if (r < 0)
 		goto out_free_vcpus;