[PATCH spice-server] reds: Free device chain in spice_server_destroy to avoid leaks

[Frediano Ziglio <fziglio@xxxxxxxxxx>]

Leak detectors did not manage to find leaks, possibly as double list
have all elements likely with a pointer to them.
The reference from the agent is necessary for inserting it into
the list.

Signed-off-by: Frediano Ziglio <fziglio@xxxxxxxxxx>
---
 server/reds.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/server/reds.c b/server/reds.c
index f1e34529a..85043a88d 100644
--- a/server/reds.c
+++ b/server/reds.c
@@ -3132,6 +3132,7 @@ static int spice_server_char_device_add_interface(SpiceServer *reds,
             return -1;
         }
         dev_state = attach_to_red_agent(reds, char_device);
+        g_object_ref(dev_state);
     }
 #ifdef USE_SMARTCARD
     else if (strcmp(char_device->subtype, SUBTYPE_SMARTCARD) == 0) {
@@ -3682,6 +3683,19 @@ SPICE_GNUC_VISIBLE void spice_server_destroy(SpiceServer *reds)
     }
     reds_cleanup_net(reds);
     g_clear_object(&reds->agent_dev);
+
+    // NOTE: don't replace with g_list_free_full as this function that passed callback
+    // don't change the list while g_object_unref in this case will change it.
+    RedCharDevice *dev;
+    GLIST_FOREACH(reds->char_devices, RedCharDevice, dev) {
+        g_object_unref(dev);
+    }
+    g_list_free(reds->char_devices);
+    reds->char_devices = NULL;
+
+    g_list_free(reds->channels);
+    reds->channels = NULL;
+
     spice_buffer_free(&reds->client_monitors_config);
     red_record_unref(reds->record);
     reds_cleanup(reds);
-- 
2.17.1

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