linux-kernel - [PATCH 22/24] perf kmem: Perform some cleanup if '--time' is given an invalid value

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Date:   Mon, 23 Oct 2017 20:47:34 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <peterz@...radead.org>,
        kernel-janitors@...r.kernel.org,
        Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 22/24] perf kmem: Perform some cleanup if '--time' is given an invalid value

From: Christophe JAILLET <christophe.jaillet@...adoo.fr>

If the string passed in '--time' is invalid, we must do some cleanup
before leaving. As in the other error handling paths of this function.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: kernel-janitors@...r.kernel.org
Fixes: 2a865bd8dddd ("perf kmem: Add option to specify time window of interest")
Link: http://lkml.kernel.org/r/20170916060936.28199-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-kmem.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 24ee68ecdd42..d8f25ef8157b 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -1983,7 +1983,8 @@ int cmd_kmem(int argc, const char **argv)
 
 	if (perf_time__parse_str(&ptime, time_str) != 0) {
 		pr_err("Invalid time string\n");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto out_delete;
 	}
 
 	if (!strcmp(argv[0], "stat")) {
-- 
2.13.6