From 95b3a8c8a82a34ca874ac0d4a9bbbdb38034acf3 Mon Sep 17 00:00:00 2001
From: Eric Blake <eblake@redhat.com>
Date: Wed, 13 Jan 2021 16:10:13 -0600
Subject: qapi: More complex uses of QAPI_LIST_APPEND

These cases require a bit more thought to review; in each case, the
code was appending to a list, but not with a FOOList **tail variable.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210113221013.390592-6-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Flawed change to qmp_guest_network_get_interfaces() dropped]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 hw/mem/memory-device.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

(limited to 'hw/mem/memory-device.c')

diff --git a/hw/mem/memory-device.c b/hw/mem/memory-device.c
index cf0627f..d9f8301 100644
--- a/hw/mem/memory-device.c
+++ b/hw/mem/memory-device.c
@@ -199,7 +199,7 @@ out:
 MemoryDeviceInfoList *qmp_memory_device_list(void)
 {
     GSList *devices = NULL, *item;
-    MemoryDeviceInfoList *list = NULL, *prev = NULL;
+    MemoryDeviceInfoList *list = NULL, **tail = &list;
 
     object_child_foreach(qdev_get_machine(), memory_device_build_list,
                          &devices);
@@ -207,19 +207,11 @@ MemoryDeviceInfoList *qmp_memory_device_list(void)
     for (item = devices; item; item = g_slist_next(item)) {
         const MemoryDeviceState *md = MEMORY_DEVICE(item->data);
         const MemoryDeviceClass *mdc = MEMORY_DEVICE_GET_CLASS(item->data);
-        MemoryDeviceInfoList *elem = g_new0(MemoryDeviceInfoList, 1);
         MemoryDeviceInfo *info = g_new0(MemoryDeviceInfo, 1);
 
         mdc->fill_device_info(md, info);
 
-        elem->value = info;
-        elem->next = NULL;
-        if (prev) {
-            prev->next = elem;
-        } else {
-            list = elem;
-        }
-        prev = elem;
+        QAPI_LIST_APPEND(tail, info);
     }
 
     g_slist_free(devices);
-- 
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