Messages in this thread Patch in this message | | | From | Miaoqian Lin <> | Subject | [PATCH] perf tools: Fix NULL vs IS_ERR_OR_NULL() checking | Date | Sat, 11 Dec 2021 05:38:53 +0000 |
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The function trace_event__tp_format_id may return ERR_PTR(-ENOMEM). Use IS_ERR_OR_NULL to check tp_format.
Signed-off-by: Miaoqian Lin <linmq006@gmail.com> --- tools/perf/util/python.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c index 563a9ba8954f..7f782a31bda3 100644 --- a/tools/perf/util/python.c +++ b/tools/perf/util/python.c @@ -461,7 +461,7 @@ get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name) struct tep_event *tp_format; tp_format = trace_event__tp_format_id(evsel->core.attr.config); - if (!tp_format) + if (IS_ERR_OR_NULL(tp_format)) return NULL; evsel->tp_format = tp_format; -- 2.17.1
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