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-rw-r--r--gnuradio-core/src/python/gnuradio/blks2impl/generic_usrp.py9
1 files changed, 6 insertions, 3 deletions
diff --git a/gnuradio-core/src/python/gnuradio/blks2impl/generic_usrp.py b/gnuradio-core/src/python/gnuradio/blks2impl/generic_usrp.py
index 5abbaf9eb..6daa4e7a2 100644
--- a/gnuradio-core/src/python/gnuradio/blks2impl/generic_usrp.py
+++ b/gnuradio-core/src/python/gnuradio/blks2impl/generic_usrp.py
@@ -122,10 +122,13 @@ class _generic_usrp_base(object):
if self._type == USRP1_TYPE: return self._subdev.set_auto_tr(enable)
def __del__(self):
- try: # Avoid weak reference error
- del self._u
+ #delete usrp1 specific subdev
+ if self._type == USRP1_TYPE:
del self._subdev
- except: pass
+ self._subdev = None
+ #delete the usrp device
+ del self._u
+ self._u = None
########################################################################
# generic usrp source