Fix dialyze issue

src/emqx_base62.erl

@@ -22,7 +22,7 @@
 %% @doc Encode any data to base62 binary
 -spec encode(string()
              | integer()
-             | binary()) -> float().
+             | binary()) -> binary().
 encode(I) when is_integer(I) ->
     encode(integer_to_binary(I));
 encode(S) when is_list(S)->
@@ -110,4 +110,3 @@ decode_char(I) when I >= $A andalso I =< $Z->
 
 decode_char(9, I) ->
     I + 61 - $A.
-

src/emqx_bridge.erl

@@ -117,7 +117,7 @@ handle_info(start, State = #state{options = Options,
             {noreply, State#state{client_pid = ClientPid}};
         {error,_} ->
             erlang:send_after(ReconnectTime, self(), start),
-            {noreply, State = #state{reconnect_count = ReconnectCount-1}}
+            {noreply, State#state{reconnect_count = ReconnectCount-1}}
     end;
 
 %%----------------------------------------------------------------
@@ -138,7 +138,7 @@ handle_info(start, State = #state{options = Options,
             {noreply, State#state{client_pid = ClientPid}};
         {error,_} ->
             erlang:send_after(ReconnectTime, self(), start),
-            {noreply, State = #state{reconnect_count = ReconnectCount-1}}
+            {noreply, State#state{reconnect_count = ReconnectCount-1}}
     end;
 
 %%----------------------------------------------------------------

src/emqx_bridge_sup.erl

@@ -27,7 +27,7 @@ start_link() ->
     supervisor:start_link({local, ?MODULE}, ?MODULE, []).
 
 %% @doc List all bridges
--spec(bridges() -> [{node(), emqx_topic:topic(), pid()}]).
+-spec(bridges() -> [{node(), Status :: binary()}]).
 bridges() ->
     [{Name, emqx_bridge:status(Pid)} || {Name, Pid, _, _} <- supervisor:which_children(?MODULE)].