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| author | Gan Qixin <ganqixin@huawei.com> | 2020-12-17 19:31:51 +0800 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2021-01-08 15:13:38 +0000 |
| commit | c9342c09f85a5f2f442fabcac58517bbba74b19f (patch) | |
| tree | 09bc4f0e42dc04121bdf6b8fd09a62ae783c2cfc /hw/timer | |
| parent | 3fabd51994566053a65df1c1e10cd96f96e0c30e (diff) | |
| download | qemu-c9342c09f85a5f2f442fabcac58517bbba74b19f.zip qemu-c9342c09f85a5f2f442fabcac58517bbba74b19f.tar.gz qemu-c9342c09f85a5f2f442fabcac58517bbba74b19f.tar.bz2 | |
exynos4210_pwm: Use ptimer_free() in the finalize function to avoid memleaks
When running device-introspect-test, a memory leak occurred in the
exynos4210_pwm_init function, so use ptimer_free() in the finalize function to
avoid it.
ASAN shows memory leak stack:
Indirect leak of 240 byte(s) in 5 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 0xaaabf56a36cc in exynos4210_pwm_init /qemu/hw/timer/exynos4210_pwm.c:401
#7 0xaaabf6339f6c in object_initialize_with_type /qemu/qom/object.c:515
#8 0xaaabf633a1e0 in object_new_with_type /qemu/qom/object.c:729
#9 0xaaabf6375e40 in qmp_device_list_properties /qemu/qom/qom-qmp-cmds.c:153
#10 0xaaabf653d8ec in qmp_marshal_device_list_properties /qemu/qapi/qapi-commands-qdev.c:59
#11 0xaaabf6587d08 in do_qmp_dispatch_bh /qemu/qapi/qmp-dispatch.c:110
#12 0xaaabf6552708 in aio_bh_call /qemu/util/async.c:136
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>
Diffstat (limited to 'hw/timer')
| -rw-r--r-- | hw/timer/exynos4210_pwm.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/hw/timer/exynos4210_pwm.c b/hw/timer/exynos4210_pwm.c index de18142..2200881 100644 --- a/hw/timer/exynos4210_pwm.c +++ b/hw/timer/exynos4210_pwm.c @@ -410,6 +410,16 @@ static void exynos4210_pwm_init(Object *obj) sysbus_init_mmio(dev, &s->iomem); } +static void exynos4210_pwm_finalize(Object *obj) +{ + Exynos4210PWMState *s = EXYNOS4210_PWM(obj); + int i; + + for (i = 0; i < EXYNOS4210_PWM_TIMERS_NUM; i++) { + ptimer_free(s->timer[i].ptimer); + } +} + static void exynos4210_pwm_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); @@ -423,6 +433,7 @@ static const TypeInfo exynos4210_pwm_info = { .parent = TYPE_SYS_BUS_DEVICE, .instance_size = sizeof(Exynos4210PWMState), .instance_init = exynos4210_pwm_init, + .instance_finalize = exynos4210_pwm_finalize, .class_init = exynos4210_pwm_class_init, }; |