diff options
| author | Mathieu Poirier <mathieu.poirier@linaro.org> | 2019-02-12 18:16:10 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-02-14 19:18:06 +0100 |
| commit | ae4d9f5236439ef08f9963f39d5984959b1ae04d (patch) | |
| tree | 00e8f8ab74643994b64c089bee59e1e7546dd58c /tools/perf | |
| parent | perf cs-etm: Introducing function cs_etm_decoder__init_dparams() (diff) | |
| download | linux-ae4d9f5236439ef08f9963f39d5984959b1ae04d.tar.xz linux-ae4d9f5236439ef08f9963f39d5984959b1ae04d.zip | |
perf cs-etm: Fix memory leak in error path
Memory allocated for variable 't_params' isn't released properly in the
error path of function cs_etm_queue *cs_etm__alloc_queue() and
cs_etm__dump_event(), something this patch addresses.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki K Poulouse <suzuki.poulose@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/20190212171618.25355-6-mathieu.poirier@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/cs-etm.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c index 3011c6cae531..aac07f950074 100644 --- a/tools/perf/util/cs-etm.c +++ b/tools/perf/util/cs-etm.c @@ -175,6 +175,10 @@ static void cs_etm__dump_event(struct cs_etm_auxtrace *etm, /* Use metadata to fill in trace parameters for trace decoder */ t_params = zalloc(sizeof(*t_params) * etm->num_cpu); + + if (!t_params) + return; + for (i = 0; i < etm->num_cpu; i++) { if (etm->metadata[i][CS_ETM_MAGIC] == __perf_cs_etmv3_magic) { u32 etmidr = etm->metadata[i][CS_ETM_ETMIDR]; @@ -206,14 +210,12 @@ static void cs_etm__dump_event(struct cs_etm_auxtrace *etm, /* Set decoder parameters to simply print the trace packets */ if (cs_etm__init_decoder_params(&d_params, NULL, CS_ETM_OPERATION_PRINT)) - return; + goto out_free; decoder = cs_etm_decoder__new(etm->num_cpu, &d_params, t_params); - zfree(&t_params); - if (!decoder) - return; + goto out_free; do { size_t consumed; @@ -228,6 +230,9 @@ static void cs_etm__dump_event(struct cs_etm_auxtrace *etm, } while (buffer_used < buffer->size); cs_etm_decoder__free(decoder); + +out_free: + zfree(&t_params); } static int cs_etm__flush_events(struct perf_session *session, @@ -379,7 +384,7 @@ static struct cs_etm_queue *cs_etm__alloc_queue(struct cs_etm_auxtrace *etm, { int i; struct cs_etm_decoder_params d_params; - struct cs_etm_trace_params *t_params; + struct cs_etm_trace_params *t_params = NULL; struct cs_etm_queue *etmq; size_t szp = sizeof(struct cs_etm_packet); @@ -461,8 +466,6 @@ static struct cs_etm_queue *cs_etm__alloc_queue(struct cs_etm_auxtrace *etm, etmq->decoder = cs_etm_decoder__new(etm->num_cpu, &d_params, t_params); - zfree(&t_params); - if (!etmq->decoder) goto out_free; @@ -475,6 +478,8 @@ static struct cs_etm_queue *cs_etm__alloc_queue(struct cs_etm_auxtrace *etm, cs_etm__mem_access)) goto out_free_decoder; + zfree(&t_params); + etmq->offset = 0; etmq->period_instructions = 0; @@ -483,6 +488,7 @@ static struct cs_etm_queue *cs_etm__alloc_queue(struct cs_etm_auxtrace *etm, out_free_decoder: cs_etm_decoder__free(etmq->decoder); out_free: + zfree(&t_params); zfree(&etmq->event_buf); zfree(&etmq->last_branch); zfree(&etmq->last_branch_rb); |