Commit-ID: 6cd4ac6a02c9bc6560faf567ac013902ab9cd039 Gitweb: https://git.kernel.org/tip/6cd4ac6a02c9bc6560faf567ac013902ab9cd039 Author: Leo Yan <leo.yan@xxxxxxxxxx> AuthorDate: Mon, 18 Jun 2018 13:09:55 +0800 Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> CommitDate: Tue, 24 Jul 2018 14:48:32 -0300 perf cs-etm: Bail out immediately for instruction sample failure 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. Signed-off-by: Leo Yan <leo.yan@xxxxxxxxxx> Reviewed-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx> Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx> Cc: Jiri Olsa <jolsa@xxxxxxxxxx> Cc: Kim Phillips <kim.phillips@xxxxxxx> Cc: Mike Leach <mike.leach@xxxxxxxxxx> Cc: Namhyung Kim <namhyung@xxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Robert Walker <robert.walker@xxxxxxx> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx Link: http://lkml.kernel.org/r/1529298599-3876-3-git-send-email-leo.yan@xxxxxxxxxx Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> --- 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 822ba915d144..8b2c099e750a 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; /* -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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