From patchwork Mon Oct 15 11:52:36 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Armbruster X-Patchwork-Id: 984116 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 42YcPY404wz9s5c for ; Mon, 15 Oct 2018 22:57:21 +1100 (AEDT) Received: from localhost ([::1]:51832 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gC1Ut-0006cN-3o for incoming@patchwork.ozlabs.org; Mon, 15 Oct 2018 07:57:19 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39393) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gC1R0-00045j-Fg for qemu-devel@nongnu.org; Mon, 15 Oct 2018 07:53:19 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gC1Qw-0001wv-Tz for qemu-devel@nongnu.org; Mon, 15 Oct 2018 07:53:18 -0400 Received: from mx1.redhat.com ([209.132.183.28]:37928) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gC1Qw-0001w1-Lw for qemu-devel@nongnu.org; Mon, 15 Oct 2018 07:53:14 -0400 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id C71723082AF5; Mon, 15 Oct 2018 11:53:13 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-116-50.ams2.redhat.com [10.36.116.50]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 6195D77C08; Mon, 15 Oct 2018 11:53:11 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id A9A6D1132D75; Mon, 15 Oct 2018 13:53:09 +0200 (CEST) From: Markus Armbruster To: qemu-devel@nongnu.org Date: Mon, 15 Oct 2018 13:52:36 +0200 Message-Id: <20181015115309.17089-3-armbru@redhat.com> In-Reply-To: <20181015115309.17089-1-armbru@redhat.com> References: <20181015115309.17089-1-armbru@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.45]); Mon, 15 Oct 2018 11:53:14 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v2 02/35] Use error_fatal to simplify obvious fatal errors (again) X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Paolo Bonzini , Alexander Graf , David Gibson Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Add a slight improvement of the Coccinelle semantic patch from commit 007b06578ab, and use it to clean up. It leaves dead Error * variables behind, cleaned up manually. Cc: David Gibson Cc: Alexander Graf Cc: Eric Blake Cc: Paolo Bonzini Signed-off-by: Markus Armbruster Reviewed-by: Eric Blake Acked-by: David Gibson --- hw/intc/xics_kvm.c | 7 +------ qemu-nbd.c | 6 +----- scripts/coccinelle/use-error_fatal.cocci | 20 ++++++++++++++++++++ vl.c | 7 +------ 4 files changed, 23 insertions(+), 17 deletions(-) create mode 100644 scripts/coccinelle/use-error_fatal.cocci diff --git a/hw/intc/xics_kvm.c b/hw/intc/xics_kvm.c index 30c3769a20..e8fa9a53ae 100644 --- a/hw/intc/xics_kvm.c +++ b/hw/intc/xics_kvm.c @@ -198,17 +198,12 @@ static void ics_get_kvm_state(ICSState *ics) { uint64_t state; int i; - Error *local_err = NULL; for (i = 0; i < ics->nr_irqs; i++) { ICSIRQState *irq = &ics->irqs[i]; kvm_device_access(kernel_xics_fd, KVM_DEV_XICS_GRP_SOURCES, - i + ics->offset, &state, false, &local_err); - if (local_err) { - error_report_err(local_err); - exit(1); - } + i + ics->offset, &state, false, &error_fatal); irq->server = state & KVM_XICS_DESTINATION_MASK; irq->saved_priority = (state >> KVM_XICS_PRIORITY_SHIFT) diff --git a/qemu-nbd.c b/qemu-nbd.c index e76fe3082a..7874bc973c 100644 --- a/qemu-nbd.c +++ b/qemu-nbd.c @@ -1002,11 +1002,7 @@ int main(int argc, char **argv) } exp = nbd_export_new(bs, dev_offset, fd_size, nbdflags, nbd_export_closed, - writethrough, NULL, &local_err); - if (!exp) { - error_report_err(local_err); - exit(EXIT_FAILURE); - } + writethrough, NULL, &error_fatal); nbd_export_set_name(exp, export_name); nbd_export_set_description(exp, export_description); diff --git a/scripts/coccinelle/use-error_fatal.cocci b/scripts/coccinelle/use-error_fatal.cocci new file mode 100644 index 0000000000..10fff0aec4 --- /dev/null +++ b/scripts/coccinelle/use-error_fatal.cocci @@ -0,0 +1,20 @@ +@@ +type T; +identifier FUN, RET; +expression list ARGS; +expression ERR, EC, FAIL; +@@ +( +- T RET = FUN(ARGS, &ERR); ++ T RET = FUN(ARGS, &error_fatal); +| +- RET = FUN(ARGS, &ERR); ++ RET = FUN(ARGS, &error_fatal); +| +- FUN(ARGS, &ERR); ++ FUN(ARGS, &error_fatal); +) +- if (FAIL) { +- error_report_err(ERR); +- exit(EC); +- } diff --git a/vl.c b/vl.c index 4e25c78bff..ff50199e64 100644 --- a/vl.c +++ b/vl.c @@ -2002,15 +2002,10 @@ static void select_vgahw(const char *p) static void parse_display_qapi(const char *optarg) { - Error *err = NULL; DisplayOptions *opts; Visitor *v; - v = qobject_input_visitor_new_str(optarg, "type", &err); - if (!v) { - error_report_err(err); - exit(1); - } + v = qobject_input_visitor_new_str(optarg, "type", &error_fatal); visit_type_DisplayOptions(v, NULL, &opts, &error_fatal); QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);