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Re: [PATCH 1/3] pl031: Use timer_free() in the finalize function to avoi


From: Peter Maydell
Subject: Re: [PATCH 1/3] pl031: Use timer_free() in the finalize function to avoid memleaks
Date: Tue, 15 Dec 2020 13:42:11 +0000

On Fri, 4 Dec 2020 at 08:13, Gan Qixin <ganqixin@huawei.com> wrote:
>
> When running device-introspect-test, a memory leak occurred in the pl031_init
> function, this patch use timer_free() in the finalize function to fix it.
>
> ASAN shows memory leak stack:
>
> Direct leak of 48 byte(s) in 1 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 0xaaabf5621cfc in timer_new_full qemu/include/qemu/timer.h:523
>     #3 0xaaabf5621cfc in timer_new qemu/include/qemu/timer.h:544
>     #4 0xaaabf5621cfc in timer_new_ns qemu/include/qemu/timer.h:562
>     #5 0xaaabf5621cfc in pl031_init qemu/hw/rtc/pl031.c:194
>     #6 0xaaabf6339f6c in object_initialize_with_type qemu/qom/object.c:515
>     #7 0xaaabf633a1e0 in object_new_with_type qemu/qom/object.c:729
>     #8 0xaaabf6375e40 in qmp_device_list_properties 
> qemu/qom/qom-qmp-cmds.c:153
>     #9 0xaaabf5a95540 in qdev_device_help qemu/softmmu/qdev-monitor.c:283
>     #10 0xaaabf5a96940 in qmp_device_add qemu/softmmu/qdev-monitor.c:801
>     #11 0xaaabf5a96e70 in hmp_device_add qemu/softmmu/qdev-monitor.c:916
>     #12 0xaaabf5ac0a2c in handle_hmp_command qemu/monitor/hmp.c:1100
>
> Reported-by: Euler Robot <euler.robot@huawei.com>
> Signed-off-by: Gan Qixin <ganqixin@huawei.com>
> ---
> Cc: Peter Maydell <peter.maydell@linaro.org>

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM



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