[PULL 04/28] hw/intc/loongson_ipi: Fix resource leak

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

Once initialised, QOM objects can be realized and
unrealized multiple times before being finalized.
Resources allocated in REALIZE must be deallocated
in an equivalent UNREALIZE handler.

Free the CPU array in loongson_ipi_unrealize()
instead of loongson_ipi_finalize().

Cc: qemu-stable@nongnu.org
Fixes: 5e90b8db382 ("hw/loongarch: Set iocsr address space per-board rather than percpu")
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240723111405.14208-3-philmd@linaro.org>
---
 hw/intc/loongson_ipi.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/hw/intc/loongson_ipi.c b/hw/intc/loongson_ipi.c
index e7979dbdd8b..4013f81745e 100644
--- a/hw/intc/loongson_ipi.c
+++ b/hw/intc/loongson_ipi.c
@@ -318,6 +318,13 @@ static void loongson_ipi_realize(DeviceState *dev, Error **errp)
     }
 }
 
+static void loongson_ipi_unrealize(DeviceState *dev)
+{
+    LoongsonIPI *s = LOONGSON_IPI(dev);
+
+    g_free(s->cpu);
+}
+
 static const VMStateDescription vmstate_ipi_core = {
     .name = "ipi-single",
     .version_id = 2,
@@ -353,23 +360,16 @@ static void loongson_ipi_class_init(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
 
     dc->realize = loongson_ipi_realize;
+    dc->unrealize = loongson_ipi_unrealize;
     device_class_set_props(dc, ipi_properties);
     dc->vmsd = &vmstate_loongson_ipi;
 }
 
-static void loongson_ipi_finalize(Object *obj)
-{
-    LoongsonIPI *s = LOONGSON_IPI(obj);
-
-    g_free(s->cpu);
-}
-
 static const TypeInfo loongson_ipi_info = {
     .name          = TYPE_LOONGSON_IPI,
     .parent        = TYPE_SYS_BUS_DEVICE,
     .instance_size = sizeof(LoongsonIPI),
     .class_init    = loongson_ipi_class_init,
-    .instance_finalize = loongson_ipi_finalize,
 };
 
 static void loongson_ipi_register_types(void)
-- 
2.41.0