KVM: do not release the error page

After commit a2766325cf9f9, the error page is replaced by the
error code, it need not be released anymore

[ The patch has been compiling tested for powerpc ]

Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c
index 56f553391896..ea475cd03511 100644
--- a/virt/kvm/async_pf.c
+++ b/virt/kvm/async_pf.c
@@ -111,7 +111,7 @@ void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu)
                         list_entry(vcpu->async_pf.done.next,
                                    typeof(*work), link);
                 list_del(&work->link);
-                if (work->page)
+                if (!is_error_page(work->page))
                         kvm_release_page_clean(work->page);
                 kmem_cache_free(async_pf_cache, work);
         }
@@ -138,7 +138,7 @@ void kvm_check_async_pf_completion(struct kvm_vcpu *vcpu)
 
                 list_del(&work->queue);
                 vcpu->async_pf.queued--;
-                if (work->page)
+                if (!is_error_page(work->page))
                         kvm_release_page_clean(work->page);
                 kmem_cache_free(async_pf_cache, work);
         }