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perf cs-etm: Fix wrong return values in error path 

Function cs_etm__mem_access() is supposed to return a u32 but the error
path returns negative values at a couple of places, something that really
throws off the clients using it.  Fix the situation by return '0'.

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/20190212171618.25355-4-mathieu.poirier@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Mathieu Poirier 2019-02-12 10:16:08 -07:00 committed by Arnaldo Carvalho de Melo
parent fc7ac4138c
commit d3267ad43d
1 changed files with 2 additions and 2 deletions
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4
tools/perf/util/cs-etm.c
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@ -324,7 +324,7 @@ static u32 cs_etm__mem_access(struct cs_etm_queue *etmq, u64 address,
struct addr_location al;
if (!etmq)
return -1;
return 0;
machine = etmq->etm->machine;
cpumode = cs_etm__cpu_mode(etmq, address);
@ -332,7 +332,7 @@ static u32 cs_etm__mem_access(struct cs_etm_queue *etmq, u64 address,
thread = etmq->thread;
if (!thread) {
if (cpumode != PERF_RECORD_MISC_KERNEL)
return -EINVAL;
return 0;
thread = etmq->etm->unknown_thread;
}