As explained in commit aff39be0ed97:

  Both functions, object_initialize() and qdev_set_parent_bus()
  increase the reference counter of the new object, so one of the
  references has to be dropped afterwards to get the reference
  counting right. Otherwise the child object will not be properly
  cleaned up when the parent gets destroyed.
  Thus let's use now sysbus_init_child_obj() instead to get the
  reference counting here right.

Signed-off-by: Philippe Mathieu-Daudé <phi...@redhat.com>
---
v2: Corrected commit description (pm215)
---
 hw/arm/exynos4_boards.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/arm/exynos4_boards.c b/hw/arm/exynos4_boards.c
index f69358a5ba..2781d8bd41 100644
--- a/hw/arm/exynos4_boards.c
+++ b/hw/arm/exynos4_boards.c
@@ -131,8 +131,8 @@ exynos4_boards_init_common(MachineState *machine,
     exynos4_boards_init_ram(s, get_system_memory(),
                             exynos4_board_ram_size[board_type]);
 
-    object_initialize(&s->soc, sizeof(s->soc), TYPE_EXYNOS4210_SOC);
-    qdev_set_parent_bus(DEVICE(&s->soc), sysbus_get_default());
+    sysbus_init_child_obj(OBJECT(machine), "soc",
+                          &s->soc, sizeof(s->soc), TYPE_EXYNOS4210_SOC);
     object_property_set_bool(OBJECT(&s->soc), true, "realized",
                              &error_fatal);
 
-- 
2.20.1


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