[PATCH 5/7] perf hists browser: Fix possible memory leak

[Namhyung Kim]

The options array saves strings for each popup menu item.  The number of
items can be vary according to the currently selected item.  So it can
leak some memory if it's exited from a small item.  Fix it by freeing
all items when loop terminates.

Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
---
 tools/perf/ui/browsers/hists.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 8f303eb5044d..cace2df7e561 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1691,7 +1691,8 @@ skip_annotation:
 				"Switch to another data file in PWD") > 0)
 			switch_data = nr_options++;
 add_exit_option:
-		options[nr_options++] = (char *)"Exit";
+		if (asprintf(&options[nr_options], "Exit") > 0)
+			nr_options++;
 retry_popup_menu:
 		choice = ui__popup_menu(nr_options, options);
 
@@ -1812,7 +1813,7 @@ out_free_stack:
 	pstack__delete(fstack);
 out:
 	hist_browser__delete(browser);
-	free_popup_options(options, nr_options - 1);
+	free_popup_options(options, ARRAY_SIZE(options));
 	return key;
 }
 
-- 
2.3.5

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