From: Ian Rogers <irogers@google.com>
Date: Thu, 10 Jul 2025 23:51:23 +0000 (-0700)
Subject: perf python: Fix thread check in pyrf_evsel__read
X-Git-Tag: v6.16.1~242
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=fc45f64987b606ce0de43ec49d9e93f235591fa6;p=thirdparty%2Fkernel%2Fstable.git

perf python: Fix thread check in pyrf_evsel__read

[ Upstream commit 64ec9b997f3a9462901a404ad60f452f76dd2d6e ]

The CPU index is incorrectly checked rather than the thread index.

Fixes: 739621f65702 ("perf python: Add evsel read method")
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250710235126.1086011-11-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index 321c333877fa7..eb560e3f9e351 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -909,7 +909,7 @@ static PyObject *pyrf_evsel__read(struct pyrf_evsel *pevsel,
 		return NULL;
 	}
 	thread_idx = perf_thread_map__idx(evsel->core.threads, thread);
-	if (cpu_idx < 0) {
+	if (thread_idx < 0) {
 		PyErr_Format(PyExc_TypeError, "Thread %d is not part of evsel's threads",
 			     thread);
 		return NULL;