X-Git-Url: http://git.monstr.eu/?p=linux-2.6-microblaze.git;a=blobdiff_plain;f=kernel%2Ftrace%2Ftrace_events_hist.c;h=ba03b7d84fc2bddb989c11567843a799795dbe55;hp=dacd6fe0f60c97a8b91015083cd0e819c3e7c150;hb=6c610dba6e2beb1a16ac309672181d0090fb8d30;hpb=099dcc1801d981260aee9496dbeb55270dca70c1

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index dacd6fe0f60c..ba03b7d84fc2 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -5232,6 +5232,7 @@ static void unregister_field_var_hists(struct hist_trigger_data *hist_data)
 		cmd = hist_data->field_var_hists[i]->cmd;
 		ret = event_hist_trigger_func(&trigger_hist_cmd, file,
 					      "!hist", "hist", cmd);
+		WARN_ON_ONCE(ret < 0);
 	}
 }