From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 048B1C2BC73 for ; Wed, 4 Dec 2019 18:27:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C0CD320661 for ; Wed, 4 Dec 2019 18:27:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575484057; bh=u/ht6PC8dTaXSeedqZtbu1SzlGDMXer7QYkbRsHtsc0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=PC8B9G64hui2NTCpZUFUf7hRecrU+1gEsfVHZifzymvESLXAjjNvkck5kaKmkeD1/ Yib8yn/g4WQQy7LVuLcXC+Q5bBf0wiPqXZ4opX0eBS6twiPHhqoGCpYKiS4TVZDJcE 39E0+mDLJEz11NjSgHk67IsPgpVhZXm/ec2GPNpA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728699AbfLDR6V (ORCPT ); Wed, 4 Dec 2019 12:58:21 -0500 Received: from mail.kernel.org ([198.145.29.99]:60936 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728688AbfLDR6U (ORCPT ); Wed, 4 Dec 2019 12:58:20 -0500 Received: from localhost (unknown [217.68.49.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 979D820675; Wed, 4 Dec 2019 17:58:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575482300; bh=u/ht6PC8dTaXSeedqZtbu1SzlGDMXer7QYkbRsHtsc0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iCPtbrriwOQuyZE228SrLU/FtK65flwdFyaNJP8Wajv9oexxDOWZaK7JyiXp4en9/ C6Llx+cY2ACdgc4tkpcJuP5J3HVJ+0H+JS+UF7D7HWZEDLWtfEqQ9T5hLmWxjo/4NQ 4I+38FwfRtH79dyLlqW0ChiAxrIcibU4trLFc3wc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Michael Mueller , Cornelia Huck , Pierre Morel , David Hildenbrand , Christian Borntraeger , Sasha Levin Subject: [PATCH 4.4 31/92] KVM: s390: unregister debug feature on failing arch init Date: Wed, 4 Dec 2019 18:49:31 +0100 Message-Id: <20191204174332.469715228@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191204174327.215426506@linuxfoundation.org> References: <20191204174327.215426506@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Michael Mueller [ Upstream commit 308c3e6673b012beecb96ef04cc65f4a0e7cdd99 ] Make sure the debug feature and its allocated resources get released upon unsuccessful architecture initialization. A related indication of the issue will be reported as kernel message. Signed-off-by: Michael Mueller Reviewed-by: Cornelia Huck Reviewed-by: Pierre Morel Reviewed-by: David Hildenbrand Message-Id: <20181130143215.69496-2-mimu@linux.ibm.com> Signed-off-by: Christian Borntraeger Signed-off-by: Sasha Levin --- arch/s390/kvm/kvm-s390.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 3e46f62d32adf..b4032d625d225 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -185,17 +185,28 @@ void kvm_arch_hardware_unsetup(void) int kvm_arch_init(void *opaque) { + int rc; + kvm_s390_dbf = debug_register("kvm-trace", 32, 1, 7 * sizeof(long)); if (!kvm_s390_dbf) return -ENOMEM; if (debug_register_view(kvm_s390_dbf, &debug_sprintf_view)) { - debug_unregister(kvm_s390_dbf); - return -ENOMEM; + rc = -ENOMEM; + goto out_debug_unreg; } /* Register floating interrupt controller interface. */ - return kvm_register_device_ops(&kvm_flic_ops, KVM_DEV_TYPE_FLIC); + rc = kvm_register_device_ops(&kvm_flic_ops, KVM_DEV_TYPE_FLIC); + if (rc) { + pr_err("Failed to register FLIC rc=%d\n", rc); + goto out_debug_unreg; + } + return 0; + +out_debug_unreg: + debug_unregister(kvm_s390_dbf); + return rc; } void kvm_arch_exit(void) -- 2.20.1