[PATCH 16/33] perf script: Fix memory leaks in list_scripts()

[Arnaldo Carvalho de Melo]

From: "Gustavo A. R. Silva" <gustavo@xxxxxxxxxxxxxx>

In case memory resources for *buf* and *paths* were allocated, jump to
*out* and release them before return.

Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Addresses-Coverity-ID: 1444328 ("Resource leak")
Fixes: 6f3da20e151f ("perf report: Support builtin perf script in scripts menu")
Link: http://lkml.kernel.org/r/20190408162748.GA21008@embeddedor
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/ui/browsers/scripts.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/perf/ui/browsers/scripts.c b/tools/perf/ui/browsers/scripts.c
index f2fd9f0d7ab5..50e0c03171f2 100644
--- a/tools/perf/ui/browsers/scripts.c
+++ b/tools/perf/ui/browsers/scripts.c
@@ -133,8 +133,10 @@ static int list_scripts(char *script_name, bool *custom,
 		int key = ui_browser__input_window("perf script command",
 				"Enter perf script command line (without perf script prefix)",
 				script_args, "", 0);
-		if (key != K_ENTER)
-			return -1;
+		if (key != K_ENTER) {
+			ret = -1;
+			goto out;
+		}
 		sprintf(script_name, "%s script %s", perf, script_args);
 	} else if (choice < num + max_std) {
 		strcpy(script_name, paths[choice]);
-- 
2.21.0