From patchwork Sat Nov 23 02:30:29 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miaohe Lin X-Patchwork-Id: 11258715 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 851BE6C1 for ; Sat, 23 Nov 2019 02:31:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 654FA20730 for ; Sat, 23 Nov 2019 02:31:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726666AbfKWCbM (ORCPT ); Fri, 22 Nov 2019 21:31:12 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:6701 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725962AbfKWCbM (ORCPT ); Fri, 22 Nov 2019 21:31:12 -0500 Received: from DGGEMS411-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 4BE8A966CB0AAB32D4C5; Sat, 23 Nov 2019 10:31:09 +0800 (CST) Received: from huawei.com (10.175.105.18) by DGGEMS411-HUB.china.huawei.com (10.3.19.211) with Microsoft SMTP Server id 14.3.439.0; Sat, 23 Nov 2019 10:31:03 +0800 From: linmiaohe To: , , , , , CC: , , , , Subject: [PATCH] KVM: arm: fix missing free_percpu_irq in kvm_timer_hyp_init() Date: Sat, 23 Nov 2019 10:30:29 +0800 Message-ID: <1574476229-15448-1-git-send-email-linmiaohe@huawei.com> X-Mailer: git-send-email 1.8.3.1 MIME-Version: 1.0 X-Originating-IP: [10.175.105.18] X-CFilter-Loop: Reflected Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Miaohe Lin When host_ptimer_irq request irq resource failed, we forget to release the host_vtimer_irq resource already requested. Fix this missing irq release and other similar scenario. Fixes: 9e01dc76be6a ("KVM: arm/arm64: arch_timer: Assign the phys timer on VHE systems") Signed-off-by: Miaohe Lin --- virt/kvm/arm/arch_timer.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c index f182b2380345..73867f97040c 100644 --- a/virt/kvm/arm/arch_timer.c +++ b/virt/kvm/arm/arch_timer.c @@ -935,7 +935,7 @@ int kvm_timer_hyp_init(bool has_gic) kvm_get_running_vcpus()); if (err) { kvm_err("kvm_arch_timer: error setting vcpu affinity\n"); - goto out_free_irq; + goto out_free_vtimer_irq; } static_branch_enable(&has_gic_active_state); @@ -960,7 +960,7 @@ int kvm_timer_hyp_init(bool has_gic) if (err) { kvm_err("kvm_arch_timer: can't request ptimer interrupt %d (%d)\n", host_ptimer_irq, err); - return err; + goto out_disable_gic_state; } if (has_gic) { @@ -968,7 +968,7 @@ int kvm_timer_hyp_init(bool has_gic) kvm_get_running_vcpus()); if (err) { kvm_err("kvm_arch_timer: error setting vcpu affinity\n"); - goto out_free_irq; + goto out_free_ptimer_irq; } } @@ -977,15 +977,22 @@ int kvm_timer_hyp_init(bool has_gic) kvm_err("kvm_arch_timer: invalid physical timer IRQ: %d\n", info->physical_irq); err = -ENODEV; - goto out_free_irq; + goto out_disable_gic_state; } cpuhp_setup_state(CPUHP_AP_KVM_ARM_TIMER_STARTING, "kvm/arm/timer:starting", kvm_timer_starting_cpu, kvm_timer_dying_cpu); return 0; -out_free_irq: + +out_free_ptimer_irq: + free_percpu_irq(host_ptimer_irq, kvm_get_running_vcpus()); +out_disable_gic_state: + if (has_gic) + static_branch_disable(&has_gic_active_state); +out_free_vtimer_irq: free_percpu_irq(host_vtimer_irq, kvm_get_running_vcpus()); + return err; }