In stm32f250_soc_initfn() we mostly use the standard pattern
for child objects of calling object_initialize_child(). However
for s->adc_irqs we call object_new() and then later qdev_realize(),
and we never unref the object on deinit. This causes a leak,
detected by ASAN on the device-introspect-test:
Indirect leak of 10 byte(s) in 1 object(s) allocated from:
#0 0x5b9fc4789de3 in malloc (/mnt/nvmedisk/linaro/qemu-from-laptop/qemu/build/arm-asan/qemu-system-arm+0x21f1de3) (BuildId: 267a2619a026ed91c78a07b1eb2ef15381538efe)
#1 0x740de3f28b09 in g_malloc (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x62b09) (BuildId: 1eb6131419edb83b2178b682829a6913cf682d75)
#2 0x740de3f3e4d8 in g_strdup (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x784d8) (BuildId: 1eb6131419edb83b2178b682829a6913cf682d75)
#3 0x5b9fc70159e1 in g_strdup_inline /usr/include/glib-2.0/glib/gstrfuncs.h:321:10
#4 0x5b9fc70159e1 in object_property_try_add /mnt/nvmedisk/linaro/qemu-from-laptop/qemu/build/arm-asan/../../qom/object.c:1276:18
#5 0x5b9fc7015f94 in object_property_add /mnt/nvmedisk/linaro/qemu-from-laptop/qemu/build/arm-asan/../../qom/object.c:1294:12
#6 0x5b9fc701b900 in object_add_link_prop /mnt/nvmedisk/linaro/qemu-from-laptop/qemu/build/arm-asan/../../qom/object.c:2021:10
#7 0x5b9fc701b3fc in object_property_add_link /mnt/nvmedisk/linaro/qemu-from-laptop/qemu/build/arm-asan/../../qom/object.c:2037:12
#8 0x5b9fc4c299fb in qdev_init_gpio_out_named /mnt/nvmedisk/linaro/qemu-from-laptop/qemu/build/arm-asan/../../hw/core/gpio.c:90:9
#9 0x5b9fc4c29b26 in qdev_init_gpio_out /mnt/nvmedisk/linaro/qemu-from-laptop/qemu/build/arm-asan/../../hw/core/gpio.c:101:5
#10 0x5b9fc4c0f77a in or_irq_init /mnt/nvmedisk/linaro/qemu-from-laptop/qemu/build/arm-asan/../../hw/core/or-irq.c:70:5
#11 0x5b9fc70257e1 in object_init_with_type /mnt/nvmedisk/linaro/qemu-from-laptop/qemu/build/arm-asan/../../qom/object.c:428:9
#12 0x5b9fc700cd4b in object_initialize_with_type /mnt/nvmedisk/linaro/qemu-from-laptop/qemu/build/arm-asan/../../qom/object.c:570:5
#13 0x5b9fc700e66d in object_new_with_type /mnt/nvmedisk/linaro/qemu-from-laptop/qemu/build/arm-asan/../../qom/object.c:774:5
#14 0x5b9fc700e750 in object_new /mnt/nvmedisk/linaro/qemu-from-laptop/qemu/build/arm-asan/../../qom/object.c:789:12
#15 0x5b9fc68b2162 in stm32f205_soc_initfn /mnt/nvmedisk/linaro/qemu-from-laptop/qemu/build/arm-asan/../../hw/arm/stm32f205_soc.c:69:26
Switch to using object_initialize_child() like all our
other child objects for this SoC object.
Cc: qemu-stable@nongnu.org
Fixes: b63041c8f6 ("STM32F205: Connect the ADC devices")
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20250821154229.2417453-1-peter.maydell@linaro.org
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