libperf tests: Fail when failing to get a tracepoint id
Permissions are necessary to get a tracepoint id. Fail the test when the read fails. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20210114180250.3853825-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -214,6 +214,7 @@ static int test_mmap_thread(void)
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sysfs__mountpoint());
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if (filename__read_int(path, &id)) {
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tests_failed++;
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fprintf(stderr, "error: failed to get tracepoint id: %s\n", path);
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return -1;
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}
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