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hw/arm/fsl-imx31: Fix introspection problem with the "fsl, imx31" device 

Running QEMU with valgrind indicates a problem here:

echo "{'execute':'qmp_capabilities'} {'execute':'device-list-properties'," \
 "'arguments':{'typename':'fsl,imx31'}}" \
 "{'execute': 'human-monitor-command', " \
 "'arguments': {'command-line': 'info qtree'}}" | \
 valgrind -q aarch64-softmmu/qemu-system-aarch64 -M none,accel=qtest -qmp stdio
[...]
==26172== Invalid read of size 8
==26172==    at 0x6191FA: qdev_print (qdev-monitor.c:686)
==26172==    by 0x6191FA: qbus_print (qdev-monitor.c:719)
[...]

Use the new sysbus_init_child_obj() to make sure that the objects are
cleaned up correctly when the parent gets destroyed.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 1531745974-17187-12-git-send-email-thuth@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Thomas Huth 2018-07-16 14:59:28 +02:00 committed by Peter Maydell
parent 51dd12ac0e
commit aac409c9b0
1 changed files with 12 additions and 14 deletions
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26
hw/arm/fsl-imx31.c
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@ -36,33 +36,31 @@ static void fsl_imx31_init(Object *obj)
object_initialize(&s->cpu, sizeof(s->cpu), "arm1136-" TYPE_ARM_CPU);
object_initialize(&s->avic, sizeof(s->avic), TYPE_IMX_AVIC);
qdev_set_parent_bus(DEVICE(&s->avic), sysbus_get_default());
sysbus_init_child_obj(obj, "avic", &s->avic, sizeof(s->avic),
TYPE_IMX_AVIC);
object_initialize(&s->ccm, sizeof(s->ccm), TYPE_IMX31_CCM);
qdev_set_parent_bus(DEVICE(&s->ccm), sysbus_get_default());
sysbus_init_child_obj(obj, "ccm", &s->ccm, sizeof(s->ccm), TYPE_IMX31_CCM);
for (i = 0; i < FSL_IMX31_NUM_UARTS; i++) {
object_initialize(&s->uart[i], sizeof(s->uart[i]), TYPE_IMX_SERIAL);
qdev_set_parent_bus(DEVICE(&s->uart[i]), sysbus_get_default());
sysbus_init_child_obj(obj, "uart[*]", &s->uart[i], sizeof(s->uart[i]),
TYPE_IMX_SERIAL);
}
object_initialize(&s->gpt, sizeof(s->gpt), TYPE_IMX31_GPT);
qdev_set_parent_bus(DEVICE(&s->gpt), sysbus_get_default());
sysbus_init_child_obj(obj, "gpt", &s->gpt, sizeof(s->gpt), TYPE_IMX31_GPT);
for (i = 0; i < FSL_IMX31_NUM_EPITS; i++) {
object_initialize(&s->epit[i], sizeof(s->epit[i]), TYPE_IMX_EPIT);
qdev_set_parent_bus(DEVICE(&s->epit[i]), sysbus_get_default());
sysbus_init_child_obj(obj, "epit[*]", &s->epit[i], sizeof(s->epit[i]),
TYPE_IMX_EPIT);
}
for (i = 0; i < FSL_IMX31_NUM_I2CS; i++) {
object_initialize(&s->i2c[i], sizeof(s->i2c[i]), TYPE_IMX_I2C);
qdev_set_parent_bus(DEVICE(&s->i2c[i]), sysbus_get_default());
sysbus_init_child_obj(obj, "i2c[*]", &s->i2c[i], sizeof(s->i2c[i]),
TYPE_IMX_I2C);
}
for (i = 0; i < FSL_IMX31_NUM_GPIOS; i++) {
object_initialize(&s->gpio[i], sizeof(s->gpio[i]), TYPE_IMX_GPIO);
qdev_set_parent_bus(DEVICE(&s->gpio[i]), sysbus_get_default());
sysbus_init_child_obj(obj, "gpio[*]", &s->gpio[i], sizeof(s->gpio[i]),
TYPE_IMX_GPIO);
}
}