Patch "perf bench: Fix two memory leaks detected with ASan" has been added to the 4.9-stable tree

This is a note to let you know that I've just added the patch titled

perf bench: Fix two memory leaks detected with ASan

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
perf-bench-fix-two-memory-leaks-detected-with-asan.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

commit b1c29e2248629770cee7ac88cb9dfea91e07146b

Author: Sohaib Mohamed <[email protected]>
Date:   Wed Nov 10 04:20:11 2021 +0200

perf bench: Fix two memory leaks detected with ASan

[ Upstream commit 92723ea0f11d92496687db8c9725248e9d1e5e1d ]

ASan reports memory leaks while running:

$ perf bench sched all

Fixes e27454cc6352c422 ("perf bench: Add sched-messaging.c: Benchmark for scheduler and IPC mechanisms based on hackbench")

Signed-off-by Sohaib Mohamed <[email protected]>

Acked-by Ian Rogers <[email protected]>

Cc Alexander Shishkin <[email protected]>

Cc Hitoshi Mitake <[email protected]>

Cc Jiri Olsa <[email protected]>

Cc Mark Rutland <[email protected]>

Cc Namhyung Kim <[email protected]>

Cc Paul Russel <[email protected]>

Cc Peter Zijlstra <[email protected]>

Cc Pierre Gondois <[email protected]>

Link http://lore.kernel.org/lkml/[email protected] open here

Signed-off-by Arnaldo Carvalho de Melo <[email protected]>

Signed-off-by Sasha Levin <[email protected]>

tools/perf/bench/sched-messaging.c +4 -0

index 6a111e775210f..9322fd166bdaf 100644
@@ -225,6 +225,8 @@ static unsigned int group(pthread_t *pth,
                snd_ctx->out_fds[i] = fds[1];
                if (!thread_mode)
                        close(fds[0]);
+
+               free(ctx);
        }
 
        /* Now we have all the fds, fork the senders */

@@ -241,6 +243,8 @@ static unsigned int group(pthread_t *pth,
                for (i = 0; i < num_fds; i++)
                        close(snd_ctx->out_fds[i]);
 
+       free(snd_ctx);
+
        /* Return number of children to reap */
        return num_fds * 2;
 }