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, 7 insertions, 0 deletions

diff --git a/kernel/kexec.c b/kernel/kexec.c
index 8a6d7b08864e..483899578259 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1465,6 +1465,11 @@ int kernel_kexec(void)
                 error = device_power_down(PMSG_FREEZE);
                 if (error)
                         goto Enable_irqs;
+
+                /* Suspend system devices */
+                error = sysdev_suspend(PMSG_FREEZE);
+                if (error)
+                        goto Power_up_devices;
         } else
 #endif
         {
@@ -1477,6 +1482,8 @@ int kernel_kexec(void)
 
 #ifdef CONFIG_KEXEC_JUMP
         if (kexec_image->preserve_context) {
+                sysdev_resume();
+ Power_up_devices:
                 device_power_up(PMSG_RESTORE);
  Enable_irqs:
                 local_irq_enable();