From: David Hildenbrand <david@redhat.com>
Date: Thu, 24 Aug 2017 18:51:24 +0000 (+0200)
Subject: KVM: x86: mmu: free_page can handle NULL
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=87ca74ad920ccc8b9fd1c00bd7177070f17ebc95;p=linux.git

KVM: x86: mmu: free_page can handle NULL

Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
---

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 2586c7fd0deaf..3b7f94715c57a 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -4993,8 +4993,7 @@ EXPORT_SYMBOL_GPL(kvm_disable_tdp);
 static void free_mmu_pages(struct kvm_vcpu *vcpu)
 {
 	free_page((unsigned long)vcpu->arch.mmu.pae_root);
-	if (vcpu->arch.mmu.lm_root != NULL)
-		free_page((unsigned long)vcpu->arch.mmu.lm_root);
+	free_page((unsigned long)vcpu->arch.mmu.lm_root);
 }
 
 static int alloc_mmu_pages(struct kvm_vcpu *vcpu)