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| author | Petr Machata <petrm@mellanox.com> | 2018-03-22 00:57:32 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-03-23 16:45:20 -0300 |
| commit | 83428f2fad48e16fddff0cb445cb4fedf5afe4ab (patch) | |
| tree | addf1890e855ad68222a8eb2111c6867581cc640 /tools/perf/util/python.c | |
| parent | 751b1783da784299b0509adb6a9cd3024cc4f837 (diff) | |
| download | lwn-83428f2fad48e16fddff0cb445cb4fedf5afe4ab.tar.gz lwn-83428f2fad48e16fddff0cb445cb4fedf5afe4ab.zip | |
perf python: Reference Py_None before returning it
Python None objects are handled just like all the other objects with
respect to their reference counting. Before returning Py_None, its
reference count thus needs to be bumped.
Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Petr Machata <petrm@mellanox.com>
Link: http://lkml.kernel.org/r/b1e565ecccf68064d8d54f37db5d028dda8fa522.1521675563.git.petrm@mellanox.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/python.c')
| -rw-r--r-- | tools/perf/util/python.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c index b956868fd445..863b61478edd 100644 --- a/tools/perf/util/python.c +++ b/tools/perf/util/python.c @@ -1004,8 +1004,10 @@ static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist, return PyErr_NoMemory(); evsel = perf_evlist__event2evsel(evlist, event); - if (!evsel) + if (!evsel) { + Py_INCREF(Py_None); return Py_None; + } pevent->evsel = evsel; |