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KVM: PPC: fix leakage of error page in kvmppc_patch_dcbz()
[linux-2.6-microblaze.git]
/
arch
/
powerpc
/
kvm
/
book3s.c
diff --git
a/arch/powerpc/kvm/book3s.c
b/arch/powerpc/kvm/book3s.c
index
eee97b5
..
7656b6d
100644
(file)
--- a/
arch/powerpc/kvm/book3s.c
+++ b/
arch/powerpc/kvm/book3s.c
@@
-455,8
+455,10
@@
static void kvmppc_patch_dcbz(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte)
int i;
hpage = gfn_to_page(vcpu->kvm, pte->raddr >> PAGE_SHIFT);
- if (is_error_page(hpage))
+ if (is_error_page(hpage)) {
+ kvm_release_page_clean(hpage);
return;
+ }
hpage_offset = pte->raddr & ~PAGE_MASK;
hpage_offset &= ~0xFFFULL;