powerpc/pseries: Fix partition migration hang in stop_topology_update

[platform/adaptation/renesas_rcar/renesas_kernel.git] / arch / powerpc / platforms / pseries / suspend.c

diff --git a/arch/powerpc/platforms/pseries/suspend.c b/arch/powerpc/platforms/pseries/suspend.c
index b84a8b2..47226e0 100644 (file)
--- a/arch/powerpc/platforms/pseries/suspend.c
+++ b/arch/powerpc/platforms/pseries/suspend.c
@@ -24,6 +24,7 @@
 #include <asm/machdep.h>
 #include <asm/mmu.h>
 #include <asm/rtas.h>
+#include <asm/topology.h>
 
 static u64 stream_id;
 static struct device suspend_dev;
@@ -138,8 +139,11 @@ static ssize_t store_hibernate(struct device *dev,
                        ssleep(1);
        } while (rc == -EAGAIN);
 
-       if (!rc)
+       if (!rc) {
+               stop_topology_update();
                rc = pm_suspend(PM_SUSPEND_MEM);
+               start_topology_update();
+       }
 
        stream_id = 0;