[Qemu-devel] [PATCH v3 15/17] hw/arm/stm32f205_soc: Fix introspection problem with 'stm32f205-soc' device

[Thomas Huth <thuth@redhat.com>]

Valgrind complains:

echo "{'execute':'qmp_capabilities'} {'execute':'device-list-properties'," \
 "'arguments':{'typename':'stm32f205-soc'}}" \
 "{'execute': 'human-monitor-command', " \
 "'arguments': {'command-line': 'info qtree'}}" | \
 valgrind -q aarch64-softmmu/qemu-system-aarch64 -M none,accel=qtest -qmp stdio
[...]
==28531== Invalid read of size 8
==28531==    at 0x6185BA: qdev_print (qdev-monitor.c:686)
==28531==    by 0x6185BA: qbus_print (qdev-monitor.c:719)
==28531==    by 0x452B38: handle_hmp_command (monitor.c:3446)
[...]

Fix it with the new sysbus_init_child_obj() function.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 hw/arm/stm32f205_soc.c | 28 ++++++++++++----------------
 1 file changed, 12 insertions(+), 16 deletions(-)

diff --git a/hw/arm/stm32f205_soc.c b/hw/arm/stm32f205_soc.c
index 2b2135d..c486d06 100644
--- a/hw/arm/stm32f205_soc.c
+++ b/hw/arm/stm32f205_soc.c
@@ -49,36 +49,32 @@ static void stm32f205_soc_initfn(Object *obj)
     STM32F205State *s = STM32F205_SOC(obj);
     int i;
 
-    object_initialize(&s->armv7m, sizeof(s->armv7m), TYPE_ARMV7M);
-    qdev_set_parent_bus(DEVICE(&s->armv7m), sysbus_get_default());
+    sysbus_init_child_obj(obj, "armv7m", &s->armv7m, sizeof(s->armv7m),
+                          TYPE_ARMV7M);
 
-    object_initialize(&s->syscfg, sizeof(s->syscfg), TYPE_STM32F2XX_SYSCFG);
-    qdev_set_parent_bus(DEVICE(&s->syscfg), sysbus_get_default());
+    sysbus_init_child_obj(obj, "syscfg", &s->syscfg, sizeof(s->syscfg),
+                          TYPE_STM32F2XX_SYSCFG);
 
     for (i = 0; i < STM_NUM_USARTS; i++) {
-        object_initialize(&s->usart[i], sizeof(s->usart[i]),
-                          TYPE_STM32F2XX_USART);
-        qdev_set_parent_bus(DEVICE(&s->usart[i]), sysbus_get_default());
+        sysbus_init_child_obj(obj, "usart[*]", &s->usart[i],
+                              sizeof(s->usart[i]), TYPE_STM32F2XX_USART);
     }
 
     for (i = 0; i < STM_NUM_TIMERS; i++) {
-        object_initialize(&s->timer[i], sizeof(s->timer[i]),
-                          TYPE_STM32F2XX_TIMER);
-        qdev_set_parent_bus(DEVICE(&s->timer[i]), sysbus_get_default());
+        sysbus_init_child_obj(obj, "timer[*]", &s->timer[i],
+                              sizeof(s->timer[i]), TYPE_STM32F2XX_TIMER);
     }
 
     s->adc_irqs = OR_IRQ(object_new(TYPE_OR_IRQ));
 
     for (i = 0; i < STM_NUM_ADCS; i++) {
-        object_initialize(&s->adc[i], sizeof(s->adc[i]),
-                          TYPE_STM32F2XX_ADC);
-        qdev_set_parent_bus(DEVICE(&s->adc[i]), sysbus_get_default());
+        sysbus_init_child_obj(obj, "adc[*]", &s->adc[i], sizeof(s->adc[i]),
+                              TYPE_STM32F2XX_ADC);
     }
 
     for (i = 0; i < STM_NUM_SPIS; i++) {
-        object_initialize(&s->spi[i], sizeof(s->spi[i]),
-                          TYPE_STM32F2XX_SPI);
-        qdev_set_parent_bus(DEVICE(&s->spi[i]), sysbus_get_default());
+        sysbus_init_child_obj(obj, "spi[*]", &s->spi[i], sizeof(s->spi[i]),
+                              TYPE_STM32F2XX_SPI);
     }
 }
 
-- 
1.8.3.1