From patchwork Fri Oct 9 10:19:39 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 271756 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=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 BE753C43457 for ; Fri, 9 Oct 2020 10:28:20 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 19A182226B for ; Fri, 9 Oct 2020 10:28:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="CgFabBfx" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 19A182226B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:34950 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kQpdL-0005NA-1J for qemu-devel@archiver.kernel.org; Fri, 09 Oct 2020 06:28:19 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:43062) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kQpVV-0005FQ-AB for qemu-devel@nongnu.org; Fri, 09 Oct 2020 06:20:13 -0400 Received: from bilbo.ozlabs.org ([203.11.71.1]:44509 helo=ozlabs.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kQpVS-0001n0-6Q for qemu-devel@nongnu.org; Fri, 09 Oct 2020 06:20:12 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4C73wX3tPcz9sVx; Fri, 9 Oct 2020 21:19:56 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1602238796; bh=jYLGZktOinVgDUl+krzeyhCVcCQ603d/QSk/hmkhAlw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CgFabBfxFyVgG/eQ97W0t9GVDfCepQVeZ1b5+c6cgsoqpfoMECRpmwjcGo+apRmqI Ubn7hQtr0x1SG6VaTkyAl2sPi0fC8/GaAu+2N5JC2Q9rzrP5VAPQA9eG/gicLAXElG 1yae12ENI/liVUdEQ02GLwJ9NqqFUhZ6spHmXACA= From: David Gibson To: peter.maydell@linaro.org Subject: [PULL 08/20] spapr: Simplify error handling in spapr_vio_busdev_realize() Date: Fri, 9 Oct 2020 21:19:39 +1100 Message-Id: <20201009101951.1569252-9-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201009101951.1569252-1-david@gibson.dropbear.id.au> References: <20201009101951.1569252-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=203.11.71.1; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/09 06:19:55 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.25, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Vladimir Sementsov-Ogievskiy , dbarboza@redhat.com, qemu-devel@nongnu.org, groug@kaod.org, qemu-ppc@nonngu.org, David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Greg Kurz Use the return value of spapr_irq_findone() and spapr_irq_claim() to detect failures. This allows to reduce the error propagation overhead. Signed-off-by: Greg Kurz Message-Id: <20200914123505.612812-8-groug@kaod.org> Reviewed-by: Vladimir Sementsov-Ogievskiy Signed-off-by: David Gibson --- hw/ppc/spapr_vio.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/hw/ppc/spapr_vio.c b/hw/ppc/spapr_vio.c index 731080d989..44fdd64b88 100644 --- a/hw/ppc/spapr_vio.c +++ b/hw/ppc/spapr_vio.c @@ -474,7 +474,6 @@ static void spapr_vio_busdev_realize(DeviceState *qdev, Error **errp) SpaprVioDevice *dev = (SpaprVioDevice *)qdev; SpaprVioDeviceClass *pc = VIO_SPAPR_DEVICE_GET_CLASS(dev); char *id; - Error *local_err = NULL; if (dev->reg != -1) { /* @@ -510,16 +509,15 @@ static void spapr_vio_busdev_realize(DeviceState *qdev, Error **errp) dev->irq = spapr_vio_reg_to_irq(dev->reg); if (SPAPR_MACHINE_GET_CLASS(spapr)->legacy_irq_allocation) { - dev->irq = spapr_irq_findone(spapr, &local_err); - if (local_err) { - error_propagate(errp, local_err); + int irq = spapr_irq_findone(spapr, errp); + + if (irq < 0) { return; } + dev->irq = irq; } - spapr_irq_claim(spapr, dev->irq, false, &local_err); - if (local_err) { - error_propagate(errp, local_err); + if (spapr_irq_claim(spapr, dev->irq, false, errp) < 0) { return; }