fence_scsi_test: increment error count when reservation fails

If the do_action_on subroutine fails to create a reservation, the error count should be incremented not set to zero.

Resolves: rhbz#809481

---
  fence/agents/scsi/fence_scsi_test.pl |    2 +-
  1 files changed, 1 insertions(+), 1 deletions(-)

b/fence/agents/scsi/fence_scsi_test.pl
index 5c2302c..c012a12 100755

@@ -44,7 +44,7 @@ sub do_action_on (\@$$)
       if (scalar (get_keys_reserve ($dev)) == 0) {
  	if (do_reserve ($dev, $node_key) != 0) {
-	    $err = 0;
+	    $err++;
  	}
      }
  -- 1.7.1
 

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ACK

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