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Tue, 7 Jul 2020 21:25:17 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 5679B1144259; Tue, 7 Jul 2020 23:25:04 +0200 (CEST) From: Markus Armbruster To: qemu-devel@nongnu.org Subject: [PULL 23/53] qom: Crash more nicely on object_property_get_link() failure Date: Tue, 7 Jul 2020 23:24:33 +0200 Message-Id: <20200707212503.1495927-24-armbru@redhat.com> In-Reply-To: <20200707212503.1495927-1-armbru@redhat.com> References: <20200707212503.1495927-1-armbru@redhat.com> 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=armbru@redhat.com 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=207.211.31.120; envelope-from=armbru@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/07 17:25:10 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -40 X-Spam_score: -4.1 X-Spam_bar: ---- X-Spam_report: (-4.1 / 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_H2=-1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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 Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Pass &error_abort instead of NULL where the returned value is dereferenced or asserted to be non-null. Drop a now redundant assertion. Signed-off-by: Markus Armbruster Reviewed-by: Eric Blake Reviewed-by: Vladimir Sementsov-Ogievskiy Message-Id: <20200707160613.848843-24-armbru@redhat.com> --- hw/core/platform-bus.c | 6 +++--- hw/ppc/spapr_drc.c | 3 ++- hw/ppc/spapr_hcall.c | 3 ++- hw/ppc/spapr_pci_nvlink2.c | 3 ++- ui/vnc.c | 2 +- 5 files changed, 10 insertions(+), 7 deletions(-) diff --git a/hw/core/platform-bus.c b/hw/core/platform-bus.c index d494e5cec1..5037ca265e 100644 --- a/hw/core/platform-bus.c +++ b/hw/core/platform-bus.c @@ -22,6 +22,7 @@ #include "qemu/osdep.h" #include "hw/platform-bus.h" #include "hw/qdev-properties.h" +#include "qapi/error.h" #include "qemu/error-report.h" #include "qemu/module.h" @@ -63,9 +64,8 @@ hwaddr platform_bus_get_mmio_addr(PlatformBusDevice *pbus, SysBusDevice *sbdev, return -1; } - parent_mr = object_property_get_link(OBJECT(sbdev_mr), "container", NULL); - - assert(parent_mr); + parent_mr = object_property_get_link(OBJECT(sbdev_mr), "container", + &error_abort); if (parent_mr != pbus_mr_obj) { /* MMIO region is not mapped on platform bus */ return -1; diff --git a/hw/ppc/spapr_drc.c b/hw/ppc/spapr_drc.c index d10193f39e..1f18b79348 100644 --- a/hw/ppc/spapr_drc.c +++ b/hw/ppc/spapr_drc.c @@ -870,7 +870,8 @@ int spapr_dt_drc(void *fdt, int offset, Object *owner, uint32_t drc_type_mask) continue; } - obj = object_property_get_link(root_container, prop->name, NULL); + obj = object_property_get_link(root_container, prop->name, + &error_abort); drc = SPAPR_DR_CONNECTOR(obj); drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c index 0f54988f2e..c1d01228c6 100644 --- a/hw/ppc/spapr_hcall.c +++ b/hw/ppc/spapr_hcall.c @@ -1655,7 +1655,8 @@ static void spapr_handle_transient_dev_before_cas(SpaprMachineState *spapr) continue; } drc = SPAPR_DR_CONNECTOR(object_property_get_link(drc_container, - prop->name, NULL)); + prop->name, + &error_abort)); if (spapr_drc_transient(drc)) { spapr_drc_reset(drc); diff --git a/hw/ppc/spapr_pci_nvlink2.c b/hw/ppc/spapr_pci_nvlink2.c index 8332d5694e..dd8cd6db96 100644 --- a/hw/ppc/spapr_pci_nvlink2.c +++ b/hw/ppc/spapr_pci_nvlink2.c @@ -358,7 +358,8 @@ void spapr_phb_nvgpu_ram_populate_dt(SpaprPhbState *sphb, void *fdt) for (i = 0; i < sphb->nvgpus->num; ++i) { SpaprPhbPciNvGpuSlot *nvslot = &sphb->nvgpus->slots[i]; Object *nv_mrobj = object_property_get_link(OBJECT(nvslot->gpdev), - "nvlink2-mr[0]", NULL); + "nvlink2-mr[0]", + &error_abort); uint32_t associativity[] = { cpu_to_be32(0x4), SPAPR_GPU_NUMA_ID, diff --git a/ui/vnc.c b/ui/vnc.c index 527ad25124..f006aa1afd 100644 --- a/ui/vnc.c +++ b/ui/vnc.c @@ -568,7 +568,7 @@ VncInfo2List *qmp_query_vnc_servers(Error **errp) &info->vencrypt, &info->has_vencrypt); if (vd->dcl.con) { dev = DEVICE(object_property_get_link(OBJECT(vd->dcl.con), - "device", NULL)); + "device", &error_abort)); info->has_display = true; info->display = g_strdup(dev->id); } -- 2.26.2