PM: Split up sysdev_[suspend|resume] from device_power_[down|up]

Move the sysdev_suspend/resume from the callee to the callers, with
no real change in semantics, so that we can rework the disabling of
interrupts during suspend/hibernation.

This is based on an earlier patch from Linus.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c
index 9b91617b9582..56892a142ee2 100644
--- a/drivers/xen/manage.c
+++ b/drivers/xen/manage.c
@@ -45,6 +45,13 @@ static int xen_suspend(void *data)
                        err);
                 return err;
         }
+        err = sysdev_suspend(PMSG_SUSPEND);
+        if (err) {
+                printk(KERN_ERR "xen_suspend: sysdev_suspend failed: %d\n",
+                        err);
+                device_power_up(PMSG_RESUME);
+                return err;
+        }
 
         xen_mm_pin_all();
         gnttab_suspend();
@@ -61,6 +68,7 @@ static int xen_suspend(void *data)
         gnttab_resume();
         xen_mm_unpin_all();
 
+        sysdev_resume();
         device_power_up(PMSG_RESUME);
 
         if (!*cancelled) {