Moved assignment to within safe block

src/osgPlugins/cfg/ConfigLexer.cpp

@@ -1942,7 +1942,10 @@ YY_BUFFER_STATE yyFlexLexer::yy_create_buffer( std::istream* file, int size )
 
 	b = (YY_BUFFER_STATE) yy_flex_alloc( sizeof( struct yy_buffer_state ) );
 	if ( ! b )
+        {
 		YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
+		return 0;
+        }
 
 	b->yy_buf_size = size;
 

src/osgPlugins/zip/ZipArchive.cpp

@@ -607,10 +607,10 @@ bool ZipArchive::CheckZipErrorCode(ZRESULT result) const
     {
         unsigned buf_size  = 1025;
         char* buf = new (std::nothrow) char[buf_size];
-        buf[buf_size - 1] = 0;
-
         if (buf)
         {
+            buf[buf_size - 1] = 0;
+
             FormatZipMessage(result, buf, buf_size - 1);
 
             //print error message