st7735: Fix handling of unknown commands

Command lookup for unknown codes resulted in an exception instead of the
'else' clause which was ineffective. Make the check non-fatal.

[ gsi: rephrased commit message ]

diff --git a/decoders/st7735/pd.py b/decoders/st7735/pd.py
index 626d2eb16d2c4d3ca3ebe3ba6ecba989b9a399ba..d938a2c52b8840b070401a740d2eb81a42c00698 100644 (file)
--- a/decoders/st7735/pd.py
+++ b/decoders/st7735/pd.py
@@ -108,7 +108,7 @@ class Decoder(srd.Decoder):
     def put_desc(self, ss, es, cmd, data):
         if cmd == -1:
             return
-        if META[cmd]:
+        if cmd in META:
             self.put(ss, es, self.out_ann, [Ann.DESC,
                 ['%s: %s' % (META[cmd]['name'].strip(), META[cmd]['desc'])]])
         else: