1 files changed, 7 insertions, 3 deletions
diff --git a/tests/kmstest.py b/tests/kmstest.py
index 177110e..960c27f 100755
--- a/tests/kmstest.py
+++ b/tests/kmstest.py
@@ -168,17 +168,21 @@ class CRCReader(object):
 
     def __init__(self, crtc):
         self.pipe = crtc.idx
+        self.ctrl = -1
+        self.dir = -1
+        self.data = -1
 
         # Hardcode the device minor to 0 as the KMSTest constructor opens the
         # default card object.
         self.dir = os.open(f'/sys/kernel/debug/dri/0/crtc-{self.pipe}/crc', 0)
         self.ctrl = os.open('control', os.O_WRONLY, dir_fd = self.dir)
-        self.data = -1
 
     def __del__(self):
         self.stop()
-        os.close(self.ctrl)
-        os.close(self.dir)
+        if self.ctrl != -1:
+            os.close(self.ctrl)
+        if self.dir != -1:
+            os.close(self.dir)
 
     def start(self, source):
         os.write(self.ctrl, source.encode('ascii'))