Hibernation: Move low level resume to disk.c

Move the low level restore code to kernel/power/disk.c , since the
corresponding low level hibernation code is already there.

Make restore fail if device_power_down(PMSG_PRETHAW) returns an
error.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 0 insertions, 35 deletions

diff --git a/kernel/power/swsusp.c b/kernel/power/swsusp.c
index 605c536795ba..dc29a20aff41 100644
--- a/kernel/power/swsusp.c
+++ b/kernel/power/swsusp.c
@@ -261,38 +261,3 @@ int swsusp_shrink_memory(void)
 
         return 0;
 }
-
-int swsusp_resume(void)
-{
-        int error;
-
-        local_irq_disable();
-        /* NOTE:  device_power_down() is just a suspend() with irqs off;
-         * it has no special "power things down" semantics
-         */
-        if (device_power_down(PMSG_PRETHAW))
-                printk(KERN_ERR "Some devices failed to power down, very bad\n");
-        /* We'll ignore saved state, but this gets preempt count (etc) right */
-        save_processor_state();
-        error = restore_highmem();
-        if (!error) {
-                error = swsusp_arch_resume();
-                /* The code below is only ever reached in case of a failure.
-                 * Otherwise execution continues at place where
-                 * swsusp_arch_suspend() was called
-                 */
-                BUG_ON(!error);
-                /* This call to restore_highmem() undos the previous one */
-                restore_highmem();
-        }
-        /* The only reason why swsusp_arch_resume() can fail is memory being
-         * very tight, so we have to free it as soon as we can to avoid
-         * subsequent failures
-         */
-        swsusp_free();
-        restore_processor_state();
-        touch_softlockup_watchdog();
-        device_power_up();
-        local_irq_enable();
-        return error;
-}