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hw/net/xilinx_axi: Use object_initialize_child for correct ref. counting 

As explained in commit aff39be0ed97:

  Both functions, object_initialize() and object_property_add_child()
  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 object_initialize_child() instead to get the
  reference counting here right.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190823143249.8096-7-philmd@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé 2019-08-23 16:32:49 +02:00 committed by Peter Maydell
parent 00b0fd4883
commit 65da914295
1 changed files with 8 additions and 9 deletions
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17
hw/net/xilinx_axienet.c
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@ -994,15 +994,14 @@ static void xilinx_enet_init(Object *obj)
XilinxAXIEnet *s = XILINX_AXI_ENET(obj);
SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
object_initialize(&s->rx_data_dev, sizeof(s->rx_data_dev),
TYPE_XILINX_AXI_ENET_DATA_STREAM);
object_initialize(&s->rx_control_dev, sizeof(s->rx_control_dev),
TYPE_XILINX_AXI_ENET_CONTROL_STREAM);
object_property_add_child(OBJECT(s), "axistream-connected-target",
(Object *)&s->rx_data_dev, &error_abort);
object_property_add_child(OBJECT(s), "axistream-control-connected-target",
(Object *)&s->rx_control_dev, &error_abort);
object_initialize_child(OBJECT(s), "axistream-connected-target",
&s->rx_data_dev, sizeof(s->rx_data_dev),
TYPE_XILINX_AXI_ENET_DATA_STREAM, &error_abort,
NULL);
object_initialize_child(OBJECT(s), "axistream-control-connected-target",
&s->rx_control_dev, sizeof(s->rx_control_dev),
TYPE_XILINX_AXI_ENET_CONTROL_STREAM, &error_abort,
NULL);
sysbus_init_irq(sbd, &s->irq);
memory_region_init_io(&s->iomem, OBJECT(s), &enet_ops, s, "enet", 0x40000);