From 238d5e22f80686cf86a93e292f5bd88135fdfe6e Mon Sep 17 00:00:00 2001
From: Jarrod Johnson <jbjohnso@us.ibm.com>
Date: Wed, 30 Apr 2014 11:06:20 -0400
Subject: [PATCH] Correct check for _sdr in command

In the attempt to clean up, one change broke how a command
object knows whether it has an SDR yet or not.  Correct that
mistake.

Change-Id: I76faaccf15c2dbfa2b7d5a3a4e1665e0cefe4c6d
---
 pyghmi/ipmi/command.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pyghmi/ipmi/command.py b/pyghmi/ipmi/command.py
index 9eb4834c..04a6b0c7 100644
--- a/pyghmi/ipmi/command.py
+++ b/pyghmi/ipmi/command.py
@@ -312,7 +312,7 @@ class Command(object):
 
         :returns: Iterator of sdr.SensorReading objects
         """
-        if '_sdr' not in self.__dict__:
+        if self._sdr is None:
             self._sdr = sdr.SDR(self)
         for sensor in self._sdr.get_sensor_numbers():
             rsp = self.raw_command(command=0x2d, netfn=4, data=(sensor,))