From 118bfd76c9c604588cb3f97811710576f58e5a76 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Tue, 7 Jul 2020 18:05:32 +0200 Subject: qdev: Use returned bool to check for qdev_realize() etc. failure Convert foo(..., &err); if (err) { ... } to if (!foo(..., &err)) { ... } for qdev_realize(), qdev_realize_and_unref(), qbus_realize() and their wrappers isa_realize_and_unref(), pci_realize_and_unref(), sysbus_realize(), sysbus_realize_and_unref(), usb_realize_and_unref(). Coccinelle script: @@ identifier fun = { isa_realize_and_unref, pci_realize_and_unref, qbus_realize, qdev_realize, qdev_realize_and_unref, sysbus_realize, sysbus_realize_and_unref, usb_realize_and_unref }; expression list args, args2; typedef Error; Error *err; @@ - fun(args, &err, args2); - if (err) + if (!fun(args, &err, args2)) { ... } Chokes on hw/arm/musicpal.c's lcd_refresh() with the unhelpful error message "no position information". Nothing to convert there; skipped. Fails to convert hw/arm/armsse.c, because Coccinelle gets confused by ARMSSE being used both as typedef and function-like macro there. Converted manually. A few line breaks tidied up manually. Signed-off-by: Markus Armbruster Reviewed-by: Eric Blake Reviewed-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Greg Kurz Message-Id: <20200707160613.848843-5-armbru@redhat.com> --- hw/ppc/e500.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'hw/ppc/e500.c') diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c index 51bf95b303..97fa970e72 100644 --- a/hw/ppc/e500.c +++ b/hw/ppc/e500.c @@ -771,8 +771,7 @@ static DeviceState *ppce500_init_mpic_kvm(const PPCE500MachineClass *pmc, dev = qdev_new(TYPE_KVM_OPENPIC); qdev_prop_set_uint32(dev, "model", pmc->mpic_version); - sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &err); - if (err) { + if (!sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &err)) { error_propagate(errp, err); object_unparent(OBJECT(dev)); return NULL; -- cgit v1.2.3