Do not forget to commit the data-type once it is created from the

packed description.

This commit was SVN r9125.

ompi/datatype/dt_args.c

@@ -385,8 +385,8 @@ int ompi_ddt_get_pack_description( ompi_datatype_t* datatype,
     return OMPI_SUCCESS;
 }
 
-ompi_datatype_t*
-ompi_ddt_create_from_packed_description( void** packed_buffer,
+static ompi_datatype_t*
+__ompi_ddt_create_from_packed_description( void** packed_buffer,
                                            struct ompi_proc_t* remote_processor )
 {
     int* position = (int*)*packed_buffer;
@@ -422,7 +422,7 @@ ompi_ddt_create_from_packed_description( void** packed_buffer,
             array_of_datatype[i] = (ompi_datatype_t*)ompi_ddt_basicDatatypes[position[i]];
         } else {
             array_of_datatype[i] =
-                ompi_ddt_create_from_packed_description( (void**)&next_buffer,
+                __ompi_ddt_create_from_packed_description( (void**)&next_buffer,
                                                            remote_processor );
             if( NULL == array_of_datatype[i] )
                 goto cleanup_and_exit;
@@ -535,3 +535,19 @@ __ompi_ddt_create_from_args( int32_t* i, MPI_Aint* a,
 
     return datatype;
 }
+
+ompi_datatype_t*
+ompi_ddt_create_from_packed_description( void** packed_buffer,
+                                         struct ompi_proc_t* remote_processor )
+{
+    ompi_datatype_t* datatype;
+
+    datatype = __ompi_ddt_create_from_packed_description( packed_buffer,
+                                                          remote_processor );
+    if( NULL == datatype ) {
+        return NULL;
+    }
+    ompi_ddt_commit( &datatype );
+    return datatype;
+}
+