From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>, Thomas Gleixner <tglx@linutronix.de>
Cc: Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
Clark Williams <williams@redhat.com>,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
Ian Rogers <irogers@google.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Alexei Starovoitov <ast@kernel.org>,
Andi Kleen <ak@linux.intel.com>,
Daniel Borkmann <daniel@iogearbox.net>,
Jin Yao <yao.jin@linux.intel.com>,
John Garry <john.garry@huawei.com>,
Kan Liang <kan.liang@linux.intel.com>,
Mark Rutland <mark.rutland@arm.com>,
Martin KaFai Lau <kafai@fb.com>,
Peter Zijlstra <peterz@infradead.org>,
Song Liu <songliubraving@fb.com>,
Stephane Eranian <eranian@google.com>, Yonghong Song <yhs@fb.com>,
bpf@vger.kernel.org, clang-built-linux@googlegroups.com,
netdev@vger.kernel.org,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 45/63] perf parse: If pmu configuration fails free terms
Date: Thu, 7 Nov 2019 15:59:53 -0300 [thread overview]
Message-ID: <20191107190011.23924-46-acme@kernel.org> (raw)
In-Reply-To: <20191107190011.23924-1-acme@kernel.org>
From: Ian Rogers <irogers@google.com>
Avoid a memory leak when the configuration fails.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org
Cc: clang-built-linux@googlegroups.com
Cc: netdev@vger.kernel.org
Link: http://lore.kernel.org/lkml/20191030223448.12930-9-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/parse-events.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 578288c94d2a..a0a80f4e7038 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1388,8 +1388,15 @@ int parse_events_add_pmu(struct parse_events_state *parse_state,
if (get_config_terms(head_config, &config_terms))
return -ENOMEM;
- if (perf_pmu__config(pmu, &attr, head_config, parse_state->error))
+ if (perf_pmu__config(pmu, &attr, head_config, parse_state->error)) {
+ struct perf_evsel_config_term *pos, *tmp;
+
+ list_for_each_entry_safe(pos, tmp, &config_terms, list) {
+ list_del_init(&pos->list);
+ free(pos);
+ }
return -EINVAL;
+ }
evsel = __add_event(list, &parse_state->idx, &attr,
get_config_name(head_config), pmu,
--
2.21.0
next prev parent reply other threads:[~2019-11-07 19:07 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20191107190011.23924-1-acme@kernel.org>
2019-11-07 18:59 ` [PATCH 11/63] perf tools: Move ALLOC_LIST into a function Arnaldo Carvalho de Melo
2019-11-07 18:59 ` [PATCH 12/63] perf tools: Avoid a malloc() for array events Arnaldo Carvalho de Melo
2019-11-07 18:59 ` [PATCH 34/63] perf tools: Splice events onto evlist even on error Arnaldo Carvalho de Melo
2019-11-07 18:59 ` [PATCH 41/63] perf parse: Add parse events handle error Arnaldo Carvalho de Melo
2019-11-07 18:59 ` [PATCH 42/63] perf parse: Ensure config and str in terms are unique Arnaldo Carvalho de Melo
2019-11-07 18:59 ` [PATCH 43/63] perf parse: Add destructors for parse event terms Arnaldo Carvalho de Melo
2019-11-07 18:59 ` [PATCH 44/63] perf parse: Before yyabort-ing free components Arnaldo Carvalho de Melo
2019-11-07 18:59 ` Arnaldo Carvalho de Melo [this message]
2019-11-07 18:59 ` [PATCH 46/63] perf parse: Add a deep delete for parse event terms Arnaldo Carvalho de Melo
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