From patchwork Mon Sep 14 12:34:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kurz X-Patchwork-Id: 273814 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=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED 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 56F83C43461 for ; Mon, 14 Sep 2020 12:40:51 +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 E2CEA20771 for ; Mon, 14 Sep 2020 12:40:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E2CEA20771 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kaod.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:57832 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kHnmr-0007Mw-MN for qemu-devel@archiver.kernel.org; Mon, 14 Sep 2020 08:40:49 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:37688) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kHnht-0006iB-4F for qemu-devel@nongnu.org; Mon, 14 Sep 2020 08:35:41 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:55060 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kHnhp-0000k0-Ex for qemu-devel@nongnu.org; Mon, 14 Sep 2020 08:35:40 -0400 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-484-GT-HPUMAOIqtAYs0i-SESQ-1; Mon, 14 Sep 2020 08:35:32 -0400 X-MC-Unique: GT-HPUMAOIqtAYs0i-SESQ-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 774D01021D32; Mon, 14 Sep 2020 12:35:31 +0000 (UTC) Received: from bahia.redhat.com (ovpn-112-218.ams2.redhat.com [10.36.112.218]) by smtp.corp.redhat.com (Postfix) with ESMTP id 2908510023A7; Mon, 14 Sep 2020 12:35:30 +0000 (UTC) From: Greg Kurz To: qemu-devel@nongnu.org Subject: [PATCH 09/15] spapr: Simplify error handling in prop_get_fdt() Date: Mon, 14 Sep 2020 14:34:59 +0200 Message-Id: <20200914123505.612812-10-groug@kaod.org> In-Reply-To: <20200914123505.612812-1-groug@kaod.org> References: <20200914123505.612812-1-groug@kaod.org> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=groug@kaod.org X-Mimecast-Spam-Score: 0.0 X-Mimecast-Originator: kaod.org Received-SPF: softfail client-ip=205.139.110.120; envelope-from=groug@kaod.org; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/14 01:39:17 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -11 X-Spam_score: -1.2 X-Spam_bar: - X-Spam_report: (-1.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_SOFTFAIL=0.665 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: Greg Kurz , Vladimir Sementsov-Ogievskiy , qemu-ppc@nongnu.org, Markus Armbruster , David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Use the return value of visit_check_struct() and visit_check_list() for error checking instead of local_err. This allows to get rid of the error propagation overhead. Signed-off-by: Greg Kurz Reviewed-by: Vladimir Sementsov-Ogievskiy --- hw/ppc/spapr_drc.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/hw/ppc/spapr_drc.c b/hw/ppc/spapr_drc.c index 04a6bf134ee8..697b28c34305 100644 --- a/hw/ppc/spapr_drc.c +++ b/hw/ppc/spapr_drc.c @@ -302,7 +302,6 @@ static void prop_get_fdt(Object *obj, Visitor *v, const char *name, { SpaprDrc *drc = SPAPR_DR_CONNECTOR(obj); QNull *null = NULL; - Error *err = NULL; int fdt_offset_next, fdt_offset, fdt_depth; void *fdt; @@ -321,6 +320,7 @@ static void prop_get_fdt(Object *obj, Visitor *v, const char *name, const struct fdt_property *prop = NULL; int prop_len = 0, name_len = 0; uint32_t tag; + bool ok; tag = fdt_next_tag(fdt, fdt_offset, &fdt_offset_next); switch (tag) { @@ -334,10 +334,9 @@ static void prop_get_fdt(Object *obj, Visitor *v, const char *name, case FDT_END_NODE: /* shouldn't ever see an FDT_END_NODE before FDT_BEGIN_NODE */ g_assert(fdt_depth > 0); - visit_check_struct(v, &err); + ok = visit_check_struct(v, errp); visit_end_struct(v, NULL); - if (err) { - error_propagate(errp, err); + if (!ok) { return; } fdt_depth--; @@ -355,10 +354,9 @@ static void prop_get_fdt(Object *obj, Visitor *v, const char *name, return; } } - visit_check_list(v, &err); + ok = visit_check_list(v, errp); visit_end_list(v, NULL); - if (err) { - error_propagate(errp, err); + if (!ok) { return; } break;