From 8998aa6762057dec9148806986bab6f9513b577b Mon Sep 17 00:00:00 2001 From: Like Xu Date: Tue, 1 Mar 2022 20:49:41 +0800 Subject: [PATCH] KVM: x86/mmu: Passing up the error state of mmu_alloc_shadow_roots() commit c6c937d673aaa1d603f62f134e1ca9c173eeeed3 upstream. Just like on the optional mmu_alloc_direct_roots() path, once shadow path reaches "r = -EIO" somewhere, the caller needs to know the actual state in order to enter error handling and avoid something worse. Fixes: 4a38162ee9f1 ("KVM: MMU: load PDPTRs outside mmu_lock") Signed-off-by: Like Xu Reviewed-by: Sean Christopherson Message-Id: <20220301124941.48412-1-likexu@tencent.com> Signed-off-by: Paolo Bonzini Signed-off-by: Greg Kroah-Hartman --- arch/x86/kvm/mmu/mmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index ccb9aa571b03..2297dd90fe4a 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -3579,7 +3579,7 @@ set_root_pgd: out_unlock: write_unlock(&vcpu->kvm->mmu_lock); - return 0; + return r; } static int mmu_alloc_special_roots(struct kvm_vcpu *vcpu)