Can you try this patch?
diff --git a/drivers/macintosh/windfarm_pm112.c
b/drivers/macintosh/windfarm_pm112.c
index 4150301a89a5..a16f43a1def9 100644
--- a/drivers/macintosh/windfarm_pm112.c
+++ b/drivers/macintosh/windfarm_pm112.c
@@ -125,7 +125,7 @@ static int create_cpu_loop(int cpu)
{
https://bugzilla.kernel.org/show_bug.cgi?id=206695
Bug ID: 206695
Summary: kmemleak reports leaks in drivers/macintosh/windfarm
Product: Platform Specific/Hardware
Version: 2.5
Kernel Version: 5.6-rc3
Hardware: PPC-64
OS: L
