org.freedesktop.DBus.GLib.ReturnVal frees returns value

[frederic heem]

Hi,
A nasty problem has been found with valgrind. Here is the following function 
description:

    <method name="getInstance">
      <annotation name="org.freedesktop.DBus.GLib.CSymbol" 
value="sniffer_get"/>
      <arg type="s" name="name" direction="out">
        <annotation name="org.freedesktop.DBus.GLib.ReturnVal" value="error"/>
      </arg>
    </method>
Here is the following declaration:
const gchar* sniffer_get(Sniffer *pSniffer, GError **ppError)

sniffer_get allocates the string, stores it as the key value in a hash table 
and return the pointer to the string. Valgrind found that dbus is freeing the 
return value ?  
Dbus must not free memory an application has allocated because there could be 
a mismatch malloc/free between the application and libdbus. 


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