From 2726dc51e0c8c4267ba7c10b5c89d6f842144b48 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Tue, 30 Jun 2020 11:03:40 +0200 Subject: hw: Fix error API violation around object_property_set_link() The Error ** argument must be NULL, &error_abort, &error_fatal, or a pointer to a variable containing NULL. Passing an argument of the latter kind twice without clearing it in between is wrong: if the first call sets an error, it no longer points to NULL for the second call. virtio_gpu_pci_base_realize(), virtio_vga_base_realize(), sparc32_ledma_device_realize(), sparc32_dma_realize(), sparc32_dma_realize() xilinx_axidma_realize(), mips_cps_realize(), macio_realize_ide(), xilinx_enet_realize(), and virtio_iommu_pci_realize() are wrong that way: they reuse the argument they pass to object_property_set_link() for another call. Harmless, because object_property_set_link() can't actually fail for them: it fails when the property doesn't exist, is not settable, or its .check() method fails. Fix by passing &error_abort instead. Cc: Gerd Hoffmann Cc: Mark Cave-Ayland Cc: "Edgar E. Iglesias" Cc: Alistair Francis Cc: Peter Maydell Cc: qemu-arm@nongnu.org Cc: Aleksandar Markovic Cc: Aurelien Jarno Cc: Aleksandar Rikalo Cc: Eric Auger Signed-off-by: Markus Armbruster Reviewed-by: Eric Auger Reviewed-by: Alistair Francis Message-Id: <20200630090351.1247703-16-armbru@redhat.com> Reviewed-by: Mark Cave-Ayland --- hw/display/virtio-gpu-pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'hw/display/virtio-gpu-pci.c') diff --git a/hw/display/virtio-gpu-pci.c b/hw/display/virtio-gpu-pci.c index b532fe8b5f..41b88b878d 100644 --- a/hw/display/virtio-gpu-pci.c +++ b/hw/display/virtio-gpu-pci.c @@ -44,7 +44,7 @@ static void virtio_gpu_pci_base_realize(VirtIOPCIProxy *vpci_dev, Error **errp) for (i = 0; i < g->conf.max_outputs; i++) { object_property_set_link(OBJECT(g->scanout[i].con), OBJECT(vpci_dev), - "device", errp); + "device", &error_abort); } } -- cgit 1.4.1