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Wed, 24 Jun 2020 16:43:48 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id EFEE81138474; Wed, 24 Jun 2020 18:43:44 +0200 (CEST) From: Markus Armbruster To: qemu-devel@nongnu.org Subject: [PATCH 07/46] error: Avoid more error_propagate() when error is not used here Date: Wed, 24 Jun 2020 18:43:05 +0200 Message-Id: <20200624164344.3778251-8-armbru@redhat.com> In-Reply-To: <20200624164344.3778251-1-armbru@redhat.com> References: <20200624164344.3778251-1-armbru@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=207.211.31.81; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/24 01:59:40 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN 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: peter.maydell@linaro.org, vsementsov@virtuozzo.com, berrange@redhat.com, ehabkost@redhat.com, qemu-block@nongnu.org, pbonzini@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" When all we do with an Error we receive into a local variable is propagating to somewhere else, we can just as well receive it there right away. The previous commit did that for simple cases with Coccinelle. Do it for a few more manually. Signed-off-by: Markus Armbruster --- blockdev.c | 5 +---- hw/core/numa.c | 44 ++++++++++++++------------------------------ qdev-monitor.c | 11 ++++------- 3 files changed, 19 insertions(+), 41 deletions(-) diff --git a/blockdev.c b/blockdev.c index b66863c42a..73736a4eaf 100644 --- a/blockdev.c +++ b/blockdev.c @@ -1009,13 +1009,10 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type, } /* Actual block device init: Functionality shared with blockdev-add */ - blk = blockdev_init(filename, bs_opts, &local_err); + blk = blockdev_init(filename, bs_opts, errp); bs_opts = NULL; if (!blk) { - error_propagate(errp, local_err); goto fail; - } else { - assert(!local_err); } /* Create legacy DriveInfo */ diff --git a/hw/core/numa.c b/hw/core/numa.c index 5f81900f88..aa8c6be210 100644 --- a/hw/core/numa.c +++ b/hw/core/numa.c @@ -449,40 +449,33 @@ void parse_numa_hmat_cache(MachineState *ms, NumaHmatCacheOptions *node, void set_numa_options(MachineState *ms, NumaOptions *object, Error **errp) { - Error *err = NULL; - if (!ms->numa_state) { error_setg(errp, "NUMA is not supported by this machine-type"); - goto end; + return; } switch (object->type) { case NUMA_OPTIONS_TYPE_NODE: - parse_numa_node(ms, &object->u.node, &err); - if (err) { - goto end; - } + parse_numa_node(ms, &object->u.node, errp); break; case NUMA_OPTIONS_TYPE_DIST: - parse_numa_distance(ms, &object->u.dist, &err); - if (err) { - goto end; - } + parse_numa_distance(ms, &object->u.dist, errp); break; case NUMA_OPTIONS_TYPE_CPU: if (!object->u.cpu.has_node_id) { - error_setg(&err, "Missing mandatory node-id property"); - goto end; + error_setg(errp, "Missing mandatory node-id property"); + return; } if (!ms->numa_state->nodes[object->u.cpu.node_id].present) { - error_setg(&err, "Invalid node-id=%" PRId64 ", NUMA node must be " - "defined with -numa node,nodeid=ID before it's used with " - "-numa cpu,node-id=ID", object->u.cpu.node_id); - goto end; + error_setg(errp, "Invalid node-id=%" PRId64 ", NUMA node must be " + "defined with -numa node,nodeid=ID before it's used with " + "-numa cpu,node-id=ID", object->u.cpu.node_id); + return; } - machine_set_cpu_numa_node(ms, qapi_NumaCpuOptions_base(&object->u.cpu), - &err); + machine_set_cpu_numa_node(ms, + qapi_NumaCpuOptions_base(&object->u.cpu), + errp); break; case NUMA_OPTIONS_TYPE_HMAT_LB: if (!ms->numa_state->hmat_enabled) { @@ -492,10 +485,7 @@ void set_numa_options(MachineState *ms, NumaOptions *object, Error **errp) return; } - parse_numa_hmat_lb(ms->numa_state, &object->u.hmat_lb, &err); - if (err) { - goto end; - } + parse_numa_hmat_lb(ms->numa_state, &object->u.hmat_lb, errp); break; case NUMA_OPTIONS_TYPE_HMAT_CACHE: if (!ms->numa_state->hmat_enabled) { @@ -505,17 +495,11 @@ void set_numa_options(MachineState *ms, NumaOptions *object, Error **errp) return; } - parse_numa_hmat_cache(ms, &object->u.hmat_cache, &err); - if (err) { - goto end; - } + parse_numa_hmat_cache(ms, &object->u.hmat_cache, errp); break; default: abort(); } - -end: - error_propagate(errp, err); } static int parse_numa(void *opaque, QemuOpts *opts, Error **errp) diff --git a/qdev-monitor.c b/qdev-monitor.c index e38030429b..40c34bb9cf 100644 --- a/qdev-monitor.c +++ b/qdev-monitor.c @@ -600,7 +600,6 @@ DeviceState *qdev_device_add(QemuOpts *opts, Error **errp) const char *driver, *path; DeviceState *dev = NULL; BusState *bus = NULL; - Error *err = NULL; bool hide; driver = qemu_opt_get(opts, "driver"); @@ -655,15 +654,14 @@ DeviceState *qdev_device_add(QemuOpts *opts, Error **errp) dev = qdev_new(driver); /* Check whether the hotplug is allowed by the machine */ - if (qdev_hotplug && !qdev_hotplug_allowed(dev, &err)) { + if (qdev_hotplug && !qdev_hotplug_allowed(dev, errp)) { /* Error must be set in the machine hook */ - assert(err); goto err_del_dev; } if (!bus && qdev_hotplug && !qdev_get_machine_hotplug_handler(dev)) { /* No bus, no machine hotplug handler --> device is not hotpluggable */ - error_setg(&err, "Device '%s' can not be hotplugged on this machine", + error_setg(errp, "Device '%s' can not be hotplugged on this machine", driver); goto err_del_dev; } @@ -671,19 +669,18 @@ DeviceState *qdev_device_add(QemuOpts *opts, Error **errp) qdev_set_id(dev, qemu_opts_id(opts)); /* set properties */ - if (qemu_opt_foreach(opts, set_property, dev, &err)) { + if (qemu_opt_foreach(opts, set_property, dev, errp)) { goto err_del_dev; } dev->opts = opts; - if (!qdev_realize(DEVICE(dev), bus, &err)) { + if (!qdev_realize(DEVICE(dev), bus, errp)) { dev->opts = NULL; goto err_del_dev; } return dev; err_del_dev: - error_propagate(errp, err); if (dev) { object_unparent(OBJECT(dev)); object_unref(OBJECT(dev)); -- 2.26.2