compile error fixed

pom.xml

@@ -8,7 +8,7 @@
    </parent>
    <groupId>fr.soleil.device</groupId>
    <artifactId>SY900S_channel-${aol}-${mode}</artifactId>
-   <version>2.2.1-SNAPSHOT</version>
+   <version>2.2.1</version>
    <packaging>nar</packaging>
    <name>SY900S_Channel</name>
    <description>SY900S_channel device</description>

src/SY900S_Channel.cpp

@@ -157,6 +157,8 @@ namespace SY900S_Channel_ns
     CREATE_SCALAR_ATTRIBUTE(attr_channel_read);
     CREATE_SCALAR_ATTRIBUTE(attr_group_read);
  
+    create_SY900S_generic_Proxy();
+
   }
   
   //+----------------------------------------------------------------------------
@@ -497,6 +499,13 @@ void SY900S_Channel::write_targetVoltage(Tango::WAttribute &attr)
         set_state(argout);
         return argout;
       }
+      if ( !SY900S_generic_Proxy )
+      {
+        argout = Tango::FAULT;
+        set_status("Device initialization failed : no proxy created!");
+        set_state(argout);
+        return argout;
+      }
 
     try
     {
@@ -558,16 +567,18 @@ void SY900S_Channel::write_targetVoltage(Tango::WAttribute &attr)
   {
     DEBUG_STREAM << "SY900S_Channel::write_read() entering..."<<endl;
     
+    response.clear();
+
     // create a SY900S_generic proxy
-    if(SY900S_generic_Proxy==0)
-      create_SY900S_generic_Proxy();
+    //if(SY900S_generic_Proxy==0)
+    //  create_SY900S_generic_Proxy();
     
     try
     {
+      if ( SY900S_generic_Proxy )
         SY900S_generic_Proxy -> command_inout("WriteRead",command_to_send.c_str(),response);
       DEBUG_STREAM<<"command_inout(WriteRead) done"<<endl;
     
-      return response;
     }
 
     catch(Tango::DevFailed &df)
@@ -582,6 +593,7 @@ void SY900S_Channel::write_targetVoltage(Tango::WAttribute &attr)
         (const char*) "Cannot send or read data on the socket device ",
         (const char*) "SY900S_Channel::write_read()");
     }
+      return response;
   }
   
   //+------------------------------------------------------------------