linux-kernel - [PATCH] perf ui/gtk: Ensure not to call gtk_main

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Date:	Sat, 18 Aug 2012 01:56:23 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc:	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Pekka Enberg <penberg@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] perf ui/gtk: Ensure not to call gtk_main_quit() twice

Currently the gtk_main_quit() is called twice when perf exits so the
following warning is emitted:

  [penberg@tux perf]$ ./perf report --gtk
  ^Cperf: Interrupt

  (perf:4048): Gtk-CRITICAL **: IA__gtk_main_quit: assertion `main_loops != NULL' failed

Fix it by not to call it unnecessarily.

Reported-by: Pekka Enberg <penberg@...nel.org>
Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/ui/gtk/setup.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/ui/gtk/setup.c b/tools/perf/ui/gtk/setup.c
index ad40b3626fdb..ec1ee26b485a 100644
--- a/tools/perf/ui/gtk/setup.c
+++ b/tools/perf/ui/gtk/setup.c
@@ -13,6 +13,8 @@ int perf_gtk__init(void)
 
 void perf_gtk__exit(bool wait_for_ok __used)
 {
+	if (!perf_gtk__is_active_context(pgctx))
+		return;
 	perf_error__unregister(&perf_gtk_eops);
 	gtk_main_quit();
 }
-- 
1.7.9.2

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