diff options
| author | Andi Kleen <[email protected]> | 2019-10-20 10:51:55 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2019-11-06 15:43:05 -0300 |
| commit | 2ccfb8bc2143ca347609d1d4434176d73a78d805 (patch) | |
| tree | ad11f89aa5f7cf704c4a2dca43d9dd0504eaaa31 | |
| parent | 796c01a4bfb4b35ec6d1bd1cd5d520515d078b51 (diff) | |
perf evsel: Avoid close(-1)
In some weak fallback cases close can be called a lot with -1. Check for
this case and avoid calling close then.
This is mainly to shut up valgrind which complains about this case.
Signed-off-by: Andi Kleen <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
| -rw-r--r-- | tools/perf/lib/evsel.c | 3 | ||||
| -rw-r--r-- | tools/perf/util/evsel.c | 3 |
2 files changed, 4 insertions, 2 deletions
diff --git a/tools/perf/lib/evsel.c b/tools/perf/lib/evsel.c index a8cb582e2721..5a89857b0381 100644 --- a/tools/perf/lib/evsel.c +++ b/tools/perf/lib/evsel.c @@ -120,7 +120,8 @@ void perf_evsel__close_fd(struct perf_evsel *evsel) for (cpu = 0; cpu < xyarray__max_x(evsel->fd); cpu++) for (thread = 0; thread < xyarray__max_y(evsel->fd); ++thread) { - close(FD(evsel, cpu, thread)); + if (FD(evsel, cpu, thread) >= 0) + close(FD(evsel, cpu, thread)); FD(evsel, cpu, thread) = -1; } } diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index d831038b55f2..d4451846af93 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -1815,7 +1815,8 @@ out_close: old_errno = errno; do { while (--thread >= 0) { - close(FD(evsel, cpu, thread)); + if (FD(evsel, cpu, thread) >= 0) + close(FD(evsel, cpu, thread)); FD(evsel, cpu, thread) = -1; } thread = nthreads; |