linux-kernel - [PATCH] perf script perl: Fail check on dynamic allocation

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Message-Id: <20231120112356.8652-1-zhaimingbing@cmss.chinamobile.com>
Date:   Mon, 20 Nov 2023 19:23:56 +0800
From:   zhaimingbing <zhaimingbing@...s.chinamobile.com>
To:     Namhyung Kim <namhyung@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>, Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Sean Christopherson <seanjc@...gle.com>,
        Li Dong <lidong@...o.com>
Cc:     linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        zhaimingbing <zhaimingbing@...s.chinamobile.com>
Subject: [PATCH] perf script perl: Fail check on dynamic allocation

Return ENOMEM when dynamic allocation failed.

Signed-off-by: zhaimingbing <zhaimingbing@...s.chinamobile.com>
---
 tools/perf/util/scripting-engines/trace-event-perl.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c
index 603091317..b072ac5d3 100644
--- a/tools/perf/util/scripting-engines/trace-event-perl.c
+++ b/tools/perf/util/scripting-engines/trace-event-perl.c
@@ -490,6 +490,9 @@ static int perl_start_script(const char *script, int argc, const char **argv,
 	scripting_context->session = session;
 
 	command_line = malloc((argc + 2) * sizeof(const char *));
+	if (!command_line)
+		return -ENOMEM;
+
 	command_line[0] = "";
 	command_line[1] = script;
 	for (i = 2; i < argc + 2; i++)
-- 
2.33.0