type/GenericIO: only use raw totals when no scale is set

When scale is set, the total will be set twice (also in part below), which will
result in this error: "ERROR: Attempting to reuse 'tot_98574167'"

Bug introduced in commit:
v0.3-25-g19ed46a [type/GenericIO: add total calculations in IO graphs]

1 files changed, 2 insertions, 1 deletions

diff --git a/type/GenericIO.class.php b/type/GenericIO.class.php
index bc0fdef..3a56fb3 100644
--- a/type/GenericIO.class.php
+++ b/type/GenericIO.class.php
@@ -17,7 +17,8 @@ class Type_GenericIO extends Type_Default {
                                 $rrdgraph[] = sprintf('DEF:min_%s%s="%s":%s:MIN', crc32hex($sources[$i]), $raw, $this->rrd_escape($this->files[$tinstance]), $ds);
                                 $rrdgraph[] = sprintf('DEF:avg_%s%s="%s":%s:AVERAGE', crc32hex($sources[$i]), $raw, $this->rrd_escape($this->files[$tinstance]), $ds);
                                 $rrdgraph[] = sprintf('DEF:max_%s%s="%s":%s:MAX', crc32hex($sources[$i]), $raw, $this->rrd_escape($this->files[$tinstance]), $ds);
-                                $rrdgraph[] = sprintf('VDEF:tot_%1$s=avg_%1$s%2$s,TOTAL', crc32hex($sources[$i]), $raw);
+                                if (!$raw)
+                                        $rrdgraph[] = sprintf('VDEF:tot_%s=avg_%1$s,TOTAL', crc32hex($sources[$i]));
                                 $i++;
                         }
                 }