qdev: Improve qdev_init_nofail()'s error reporting We get two error messages: a specific one from qdev_init(), and a generic one from qdev_init_nofail(). The specific one gets suppressed in QMP context. qdev_init_nofail() failing there is a bug, though. Cut out the qdev_init() middle-man: realize the device, and on error exit with a single error message. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>