From: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Date: Fri, 7 Sep 2012 06:15:03 +0000 (+0800)
Subject: KVM: MMU: remove unnecessary check
X-Git-Tag: v3.7-rc1~113^2~6
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7de5bdc96c372ab875408c86e0099958dba89f56;p=platform%2Fupstream%2Fkernel-adaptation-pc.git

KVM: MMU: remove unnecessary check

Checking the return of kvm_mmu_get_page is unnecessary since it is
guaranteed by memory cache

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

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 399c177..aa0b469 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2616,11 +2616,6 @@ static int __direct_map(struct kvm_vcpu *vcpu, gpa_t v, int write,
 			sp = kvm_mmu_get_page(vcpu, pseudo_gfn, iterator.addr,
 					      iterator.level - 1,
 					      1, ACC_ALL, iterator.sptep);
-			if (!sp) {
-				pgprintk("nonpaging_map: ENOMEM\n");
-				kvm_release_pfn_clean(pfn);
-				return -ENOMEM;
-			}
 
 			mmu_spte_set(iterator.sptep,
 				     __pa(sp->spt)