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From:   Chen Zhou <chenzhou10@huawei.com>
To:     <pbonzini@redhat.com>, <rkrcmar@redhat.com>, <tglx@linutronix.de>,
        <mingo@redhat.com>
CC:     <hpa@zytor.com>, <x86@kernel.org>, <kvm@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>, <chenzhou10@huawei.com>
Subject: [PATCH] KVM: SVM: fix error return code in svm_create_vcpu()
Date:   Tue, 17 Nov 2020 10:54:26 +0800
Message-ID: <20201117025426.167824-1-chenzhou10@huawei.com>
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Fix to return a negative error code from the error handling case
instead of 0 in function svm_create_vcpu(), as done elsewhere in this
function.

Fixes: f4c847a95654 ("KVM: SVM: refactor msr permission bitmap allocation")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
---
 arch/x86/kvm/svm/svm.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 1e81cfebd491..79b3a564f1c9 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -1309,8 +1309,10 @@ static int svm_create_vcpu(struct kvm_vcpu *vcpu)
 		svm->avic_is_running = true;
 
 	svm->msrpm = svm_vcpu_alloc_msrpm();
-	if (!svm->msrpm)
+	if (!svm->msrpm) {
+		err = -ENOMEM;
 		goto error_free_vmcb_page;
+	}
 
 	svm_vcpu_init_msrpm(vcpu, svm->msrpm);
 
-- 
2.20.1