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monitor-config-store: Replace key when replacing config

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g_hash_table_insert() doesn't replace the key. This was a problem
because the key was owned by the value inserted into the hash table, so
when a value was removed, the key was freed, meaning that the key in
the hash table was no pointing to freed memory. Fix this by using
g_hash_table_replace() instead, which work the same except that it
replaces the key with the one passed. This means that the key of a
value in the hash table is always the key owned by the value.

https://bugzilla.gnome.org/show_bug.cgi?id=777732
This commit is contained in:
Jonas Ådahl 2017-04-13 13:03:12 +08:00
parent 3f107da479
commit 0608ae2d4e
1 changed files with 2 additions and 2 deletions
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4
src/backends/meta-monitor-config-store.c
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@ -1185,8 +1185,8 @@ void
meta_monitor_config_store_add (MetaMonitorConfigStore *config_store,
MetaMonitorsConfig *config)
{
g_hash_table_insert (config_store->configs,
config->key, g_object_ref (config));
g_hash_table_replace (config_store->configs,
config->key, g_object_ref (config));
if (!config_store->custom_file)
meta_monitor_config_store_save (config_store);