perf ui/gtk: Fix segmentation fault on perf_hpp__for_each_format loop

The commit 2b8bfa6bb8a7 ("perf tools: Centralize default columns init in
perf_hpp__init") moves initialization of common overhead column to
perf_hpp__init() but forgot about the gtk code.

So the gtk code added the same column to the list twice causing infinite
loop when iterating it by perf_hpp__for_each_format loop.  When I run
perf report --gtk, I can see following messages indefinitely.

  (perf:11687): Gtk-CRITICAL **: IA__gtk_main_quit: assertion 'main_loops != NULL' failed
  perf: Segmentation fault

Signed-off-by: Namhyung Kim <[email protected]>
Reviewed-by: Pekka Enberg <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Pekka Enberg <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c
index cb2ed1980147c0f3ffeda4547880fe18809a9031..2ca66cc1160f4be05a06ae7d5e1a7210ce2c7f07 100644 (file)
--- a/tools/perf/ui/gtk/hists.c
+++ b/tools/perf/ui/gtk/hists.c
@@ -109,8 +109,6 @@ __HPP_COLOR_PERCENT_FN(overhead_guest_us, period_guest_us)
 
 void perf_gtk__init_hpp(void)
 {
-       perf_hpp__column_enable(PERF_HPP__OVERHEAD);
-
        perf_hpp__init();
 
        perf_hpp__format[PERF_HPP__OVERHEAD].color =