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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>
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@ -324,7 +324,7 @@ static u32 cs_etm__mem_access(struct cs_etm_queue *etmq, u64 address,
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struct addr_location al;
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if (!etmq)
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return -1;
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return 0;
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machine = etmq->etm->machine;
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cpumode = cs_etm__cpu_mode(etmq, address);
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@ -332,7 +332,7 @@ static u32 cs_etm__mem_access(struct cs_etm_queue *etmq, u64 address,
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thread = etmq->thread;
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if (!thread) {
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if (cpumode != PERF_RECORD_MISC_KERNEL)
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return -EINVAL;
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return 0;
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thread = etmq->etm->unknown_thread;
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}
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