Do not link null callbacks for token proof check

2021-10-14 15:31:58 +02:00 · 2021-10-14 15:31:58 +02:00 · cc58735ff1
parent 4b8eae41f7
commit cc58735ff1
1 changed files with 5 additions and 2 deletions
--- a/apps/cic-eth/cic_eth/eth/erc20.py
+++ b/apps/cic-eth/cic_eth/eth/erc20.py
@ -524,8 +524,11 @@ def verify_token_info(self, tokens, chain_spec_dict, success_callback, error_cal
                    ],
                queue=queue,
                )
-        s.link(success_callback)
-        s.on_error(error_callback)
+
+        if success_callback != None:
+            s.link(success_callback)
+        if error_callback != None:
+            s.on_error(error_callback)
        s.apply_async()

    return tokens