From 7b0309490cb108d881a0c66d6b350b4db7b3b4ac Mon Sep 17 00:00:00 2001 From: Amos Kong Date: Mon, 3 Mar 2014 15:57:55 +0800 Subject: qdev-monitor: Set properties after parent is assigned in device_add MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Test steps: (qemu) device_add e1000,addr=adsf Property 'e1000.addr' doesn't take value 'adsf' (qemu) info qtree Then qemu crashed. Currently we set a link to the new device from its parent bus, but the device hasn't been added to QOM tree yet. When it fails to set properties, object_unparent() can't clean up the device. Delay setting of device properties until the device has been added to the QOM composition tree. This way, when setting a property fails, object_unparent() can clean up the device properly. Signed-off-by: Amos Kong Reviewed-by: Igor Mammedov Signed-off-by: Andreas Färber --- qdev-monitor.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) (limited to 'qdev-monitor.c') diff --git a/qdev-monitor.c b/qdev-monitor.c index 6673e3cb61..9268c8759f 100644 --- a/qdev-monitor.c +++ b/qdev-monitor.c @@ -522,7 +522,7 @@ DeviceState *qdev_device_add(QemuOpts *opts) return NULL; } - /* create device, set properties */ + /* create device */ dev = DEVICE(object_new(driver)); if (bus) { @@ -533,11 +533,7 @@ DeviceState *qdev_device_add(QemuOpts *opts) if (id) { dev->id = id; } - if (qemu_opt_foreach(opts, set_property, dev, 1) != 0) { - object_unparent(OBJECT(dev)); - object_unref(OBJECT(dev)); - return NULL; - } + if (dev->id) { object_property_add_child(qdev_get_peripheral(), dev->id, OBJECT(dev), NULL); @@ -549,6 +545,13 @@ DeviceState *qdev_device_add(QemuOpts *opts) g_free(name); } + /* set properties */ + if (qemu_opt_foreach(opts, set_property, dev, 1) != 0) { + object_unparent(OBJECT(dev)); + object_unref(OBJECT(dev)); + return NULL; + } + dev->opts = opts; object_property_set_bool(OBJECT(dev), true, "realized", &err); if (err != NULL) { -- cgit v1.2.3