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mss-timer: 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
mss_timer_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 2 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 0xaaabf555db78 in ptimer_init /qemu/hw/core/ptimer.c:432
    #3 0xaaabf58a0010 in mss_timer_init /qemu/hw/timer/mss-timer.c:235
    #4 0xaaabf6339f6c in object_initialize_with_type /qemu/qom/object.c:515
    #5 0xaaabf633ca04 in object_initialize_child_with_propsv /qemu/qom/object.c:564
    #6 0xaaabf633cc08 in object_initialize_child_with_props /qemu/qom/object.c:547
    #7 0xaaabf5b8316c in m2sxxx_soc_initfn /qemu/hw/arm/msf2-soc.c:70
    #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 0xaaabf653d8ec in qmp_marshal_device_list_properties /qemu/qapi/qapi-commands-qdev.c:59
    #12 0xaaabf6587d08 in do_qmp_dispatch_bh /qemu/qapi/qmp-dispatch.c:110

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 19:31:53 +08:00 committed by Peter Maydell
parent c9342c09f8
commit e4940041f6
1 changed files with 13 additions and 0 deletions
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13
hw/timer/mss-timer.c
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@ -244,6 +244,18 @@ static void mss_timer_init(Object *obj)
sysbus_init_mmio(SYS_BUS_DEVICE(obj), &t->mmio);
}
static void mss_timer_finalize(Object *obj)
{
MSSTimerState *t = MSS_TIMER(obj);
int i;
for (i = 0; i < NUM_TIMERS; i++) {
struct Msf2Timer *st = &t->timers[i];
ptimer_free(st->ptimer);
}
}
static const VMStateDescription vmstate_timers = {
.name = "mss-timer-block",
.version_id = 1,
@ -287,6 +299,7 @@ static const TypeInfo mss_timer_info = {
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(MSSTimerState),
.instance_init = mss_timer_init,
.instance_finalize = mss_timer_finalize,
.class_init = mss_timer_class_init,
};