From mboxrd@z Thu Jan 1 00:00:00 1970 From: leo.yan@linaro.org (Leo Yan) Date: Wed, 11 Jul 2018 15:45:41 +0800 Subject: [PATCH v2 2/6] perf cs-etm: Bail out immediately for instruction sample failure In-Reply-To: <1531295145-596-1-git-send-email-leo.yan@linaro.org> References: <1531295145-596-1-git-send-email-leo.yan@linaro.org> Message-ID: <1531295145-596-3-git-send-email-leo.yan@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org If the instruction sample failure has happened, it isn't necessary to execute to the end of the function cs_etm__flush(). This commit is to bail out immediately and return the error code. Reviewed-by: Mathieu Poirier Signed-off-by: Leo Yan --- tools/perf/util/cs-etm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c index 822ba91..8b2c099 100644 --- a/tools/perf/util/cs-etm.c +++ b/tools/perf/util/cs-etm.c @@ -939,6 +939,9 @@ static int cs_etm__flush(struct cs_etm_queue *etmq) err = cs_etm__synth_instruction_sample( etmq, addr, etmq->period_instructions); + if (err) + return err; + etmq->period_instructions = 0; /* -- 2.7.4