X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=decoders%2Fcan%2Fpd.py;h=df2cbee7818c7d3f4938f76a44af5e44c61e92b1;hb=95d11271b46a46788d497481d03177e883c8554e;hp=bf38b7fb9d0e1d23f9a9b83dd76ba82349ed7a84;hpb=12851357e784b893e24880efc6cd22a0cbcc64ce;p=libsigrokdecode.git

diff --git a/decoders/can/pd.py b/decoders/can/pd.py
index bf38b7f..df2cbee 100644
--- a/decoders/can/pd.py
+++ b/decoders/can/pd.py
@@ -20,6 +20,9 @@
 
 import sigrokdecode as srd
 
+class SamplerateError(Exception):
+    pass
+
 class Decoder(srd.Decoder):
     api_version = 2
     id = 'can'
@@ -358,8 +361,8 @@ class Decoder(srd.Decoder):
         self.curbit += 1
 
     def decode(self, ss, es, data):
-        if self.samplerate is None:
-            raise Exception("Cannot decode without samplerate.")
+        if not self.samplerate:
+            raise SamplerateError('Cannot decode without samplerate.')
         for (self.samplenum, pins) in data:
 
             (can_rx,) = pins
@@ -376,6 +379,3 @@ class Decoder(srd.Decoder):
                 if not self.reached_bit(self.curbit):
                     continue
                 self.handle_bit(can_rx)
-            else:
-                raise Exception("Invalid state: %s" % self.state)
-