Fix for more return_from than call messages, causing negative level c…

…ount
etnt · Oct 2, 2017 · 37b36e2 · 37b36e2
1 parent 304175c
commit 37b36e2
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/edbg_tracer.erl b/src/edbg_tracer.erl
@@ -535,7 +535,7 @@ list_trace(Tlist, Buf) ->
              %% R E T U R N _ F R O M
              ({_N,{trace, _Pid, return_from, _MFA, _Value}},
               #tlist{level = Level} = Z) ->
-                  Z#tlist{level = Level-1}
+                  Z#tlist{level = erlang:max(Level-1,0)}
 
           end, Tlist#tlist{level = 0}, Buf),