From 9eb41c521465f62332dfddcd399412fdff9c062b Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 18 Feb 2020 17:32:46 -0500 Subject: [PATCH] x86: kvm_hv_set_msr(): use __put_user() instead of 32bit __clear_user() Signed-off-by: Al Viro --- arch/x86/kvm/hyperv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c index bcefa9d4e57e..b85b211d4676 100644 --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -1129,7 +1129,7 @@ static int kvm_hv_set_msr(struct kvm_vcpu *vcpu, u32 msr, u64 data, bool host) * only, there can be valuable data in the rest which needs * to be preserved e.g. on migration. */ - if (__clear_user((void __user *)addr, sizeof(u32))) + if (__put_user(0, (u32 __user *)addr)) return 1; hv_vcpu->hv_vapic = data; kvm_vcpu_mark_page_dirty(vcpu, gfn);