From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= Subject: [PATCH 4/4] KVM: x86: prevent uninitialized variable warning in check_svme() Date: Thu, 18 May 2017 19:37:32 +0200 Message-ID: <20170518173732.12185-5-rkrcmar@redhat.com> References: <20170518173732.12185-1-rkrcmar@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Paolo Bonzini , Dan Carpenter To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org Return-path: Received: from mx1.redhat.com ([209.132.183.28]:55264 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933250AbdERRjq (ORCPT ); Thu, 18 May 2017 13:39:46 -0400 In-Reply-To: <20170518173732.12185-1-rkrcmar@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: get_msr() of MSR_EFER is currently always going to succeed, but static checker doesn't see that far. Don't complicate stuff and just use 0 for the fallback -- it means that the feature is not present. Reported-by: Dan Carpenter Signed-off-by: Radim Krčmář --- arch/x86/kvm/emulate.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index c25cfaf584e7..0816ab2e8adc 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -4173,7 +4173,7 @@ static int check_dr_write(struct x86_emulate_ctxt *ctxt) static int check_svme(struct x86_emulate_ctxt *ctxt) { - u64 efer; + u64 efer = 0; ctxt->ops->get_msr(ctxt, MSR_EFER, &efer); -- 2.13.0