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musicpal: Use ptimer_free() in the finalize function to avoid memleaks

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When running device-introspect-test, a memory leak occurred in the
mv88w8618_pit_init function, so use ptimer_free() in the finalize function to
avoid it.

ASAN shows memory leak stack:

Indirect leak of 192 byte(s) in 4 object(s) allocated from:
    #0 0xffffab97e1f0 in __interceptor_calloc (/lib64/libasan.so.5+0xee1f0)
    #1 0xffffab256800 in g_malloc0 (/lib64/libglib-2.0.so.0+0x56800)
    #2 0xaaabf555db84 in timer_new_full /qemu/include/qemu/timer.h:523
    #3 0xaaabf555db84 in timer_new /qemu/include/qemu/timer.h:544
    #4 0xaaabf555db84 in timer_new_ns /qemu/include/qemu/timer.h:562
    #5 0xaaabf555db84 in ptimer_init /qemu/hw/core/ptimer.c:433
    #6 0xaaabf5bb2290 in mv88w8618_timer_init /qemu/hw/arm/musicpal.c:862
    #7 0xaaabf5bb2290 in mv88w8618_pit_init /qemu/hw/arm/musicpal.c:954
    #8 0xaaabf6339f6c in object_initialize_with_type /qemu/qom/object.c:515
    #9 0xaaabf633a1e0 in object_new_with_type /qemu/qom/object.c:729
    #10 0xaaabf6375e40 in qmp_device_list_properties /qemu/qom/qom-qmp-cmds.c:153
    #11 0xaaabf5a95540 in qdev_device_help /qemu/softmmu/qdev-monitor.c:283
    #12 0xaaabf5a96940 in qmp_device_add /qemu/softmmu/qdev-monitor.c:801

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Gan Qixin <ganqixin@huawei.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Gan Qixin 2020-12-17 19:31:54 +08:00 • committed by Peter Maydell
parent e4940041f6
commit a4bc0334bc
1 changed files with 12 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

12
hw/arm/musicpal.c
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@ -959,6 +959,17 @@ static void mv88w8618_pit_init(Object *obj)
sysbus_init_mmio(dev, &s->iomem);
}
static void mv88w8618_pit_finalize(Object *obj)
{
SysBusDevice *dev = SYS_BUS_DEVICE(obj);
mv88w8618_pit_state *s = MV88W8618_PIT(dev);
int i;
for (i = 0; i < 4; i++) {
ptimer_free(s->timer[i].ptimer);
}
}
static const VMStateDescription mv88w8618_timer_vmsd = {
.name = "timer",
.version_id = 1,
@ -994,6 +1005,7 @@ static const TypeInfo mv88w8618_pit_info = {
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(mv88w8618_pit_state),
.instance_init = mv88w8618_pit_init,
.instance_finalize = mv88w8618_pit_finalize,
.class_init = mv88w8618_pit_class_init,
};