hm/nvram/xlnx-versal-efuse-ctrl: Call register_finalize_block

The TYPE_XLNX_VERSAL_EFUSE_CTRL device creates a register block with
register_init_block32() in its instance_init method; we must
therefore destroy it in our instance_finalize method to avoid a leak
in the QOM introspection "init-inspect-finalize" lifecycle:

Direct leak of 304 byte(s) in 1 object(s) allocated from:
    #0 0x55f222b5b9d8 in __interceptor_calloc (/mnt/nvmedisk/linaro/qemu-from-laptop/qemu/build/asan/qemu-system-aarch64+0x294e9d8) (BuildId: 420
43d49e1139e3f3071b1f22fac1e3e7249c9a6)
    #1 0x7fbb10669c50 in g_malloc0 debian/build/deb/../../../glib/gmem.c:161:13
    #2 0x55f222f90c5d in register_init_block hw/core/register.c:248:34
    #3 0x55f222f916be in register_init_block32 hw/core/register.c:299:12
    #4 0x55f223bbdd15 in efuse_ctrl_init hw/nvram/xlnx-versal-efuse-ctrl.c:718:9
    #5 0x55f225b23391 in object_init_with_type qom/object.c:420:9
    #6 0x55f225b0a66b in object_initialize_with_type qom/object.c:562:5
    #7 0x55f225b0bf0d in object_new_with_type qom/object.c:782:5
    #8 0x55f225b0bfe1 in object_new qom/object.c:797:12
    #9 0x55f226309e0d in qmp_device_list_properties qom/qom-qmp-cmds.c:144:11

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Francisco Iglesias <francisco.iglesias@amd.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20240822162127.705879-7-peter.maydell@linaro.org

hw/nvram/xlnx-versal-efuse-ctrl.c

@@ -712,24 +712,24 @@ static void efuse_ctrl_init(Object *obj)
 {
     XlnxVersalEFuseCtrl *s = XLNX_VERSAL_EFUSE_CTRL(obj);
     SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
-    RegisterInfoArray *reg_array;
 
-    reg_array =
+    s->reg_array =
         register_init_block32(DEVICE(obj), efuse_ctrl_regs_info,
                               ARRAY_SIZE(efuse_ctrl_regs_info),
                               s->regs_info, s->regs,
                               &efuse_ctrl_ops,
                               XLNX_VERSAL_EFUSE_CTRL_ERR_DEBUG,
                               R_MAX * 4);
 
-    sysbus_init_mmio(sbd, &reg_array->mem);
+    sysbus_init_mmio(sbd, &s->reg_array->mem);
     sysbus_init_irq(sbd, &s->irq_efuse_imr);
 }
 
 static void efuse_ctrl_finalize(Object *obj)
 {
     XlnxVersalEFuseCtrl *s = XLNX_VERSAL_EFUSE_CTRL(obj);
 
+    register_finalize_block(s->reg_array);
     g_free(s->extra_pg0_lock_spec);
 }
 

include/hw/nvram/xlnx-versal-efuse.h

@@ -44,6 +44,7 @@ struct XlnxVersalEFuseCtrl {
     void *extra_pg0_lock_spec;      /* Opaque property */
     uint32_t extra_pg0_lock_n16;
 
+    RegisterInfoArray *reg_array;
     uint32_t regs[XLNX_VERSAL_EFUSE_CTRL_R_MAX];
     RegisterInfo regs_info[XLNX_VERSAL_EFUSE_CTRL_R_MAX];
 };