6.1-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ian Rogers <irogers@google.com>
[ Upstream commit 54ba44db4dddc4ca06b49bae0f9d6c5861430b18 ]
In perf_event__synthesize_threads(), fix an uninitialized pthread_join()
call when thread creation fails by only joining the successfully
created threads.
Assisted-by: Antigravity:gemini-3.1-pro
Fixes: 340b47f510bb ("perf top: Implement multithreading for perf_event__synthesize_threads")
Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/perf/util/synthetic-events.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/perf/util/synthetic-events.c b/tools/perf/util/synthetic-events.c
index cccd293b53124..2e55db810f8a3 100644
--- a/tools/perf/util/synthetic-events.c
+++ b/tools/perf/util/synthetic-events.c
@@ -1073,8 +1073,8 @@ int perf_event__synthesize_threads(struct perf_tool *tool,
}
err = 0;
out_join:
- for (i = 0; i < thread_nr; i++)
- pthread_join(synthesize_threads[i], NULL);
+ for (j = 0; j < i; j++)
+ pthread_join(synthesize_threads[j], NULL);
free(args);
free_threads:
free(synthesize_threads);
--
2.53.0