1 files changed, 33 insertions, 23 deletions

diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index 02b6764034dc..664eb0469b6e 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -16,6 +16,8 @@
 #include <linux/device.h>
 #include <linux/delay.h>
 #include <linux/fs.h>
+#include <linux/mount.h>
+
 #include "power.h"
 
 
@@ -57,16 +59,13 @@ static void power_down(suspend_disk_method_t mode)
                 error = pm_ops->enter(PM_SUSPEND_DISK);
                 break;
         case PM_DISK_SHUTDOWN:
-                printk("Powering off system\n");
-                device_shutdown();
-                machine_power_off();
+                kernel_power_off();
                 break;
         case PM_DISK_REBOOT:
-                device_shutdown();
-                machine_restart(NULL);
+                kernel_restart(NULL);
                 break;
         }
-        machine_halt();
+        kernel_halt();
         /* Valid image is on the disk, if we continue we risk serious data corruption
            after resume. */
         printk(KERN_CRIT "Please power me down manually\n");
@@ -117,8 +116,8 @@ static void finish(void)
 {
         device_resume();
         platform_finish();
-        enable_nonboot_cpus();
         thaw_processes();
+        enable_nonboot_cpus();
         pm_restore_console();
 }
 
@@ -131,28 +130,35 @@ static int prepare_processes(void)
 
         sys_sync();
 
+        disable_nonboot_cpus();
+
         if (freeze_processes()) {
                 error = -EBUSY;
-                return error;
+                goto thaw;
         }
 
         if (pm_disk_mode == PM_DISK_PLATFORM) {
                 if (pm_ops && pm_ops->prepare) {
                         if ((error = pm_ops->prepare(PM_SUSPEND_DISK)))
-                                return error;
+                                goto thaw;
                 }
         }
 
         /* Free memory before shutting down devices. */
         free_some_memory();
-
         return 0;
+thaw:
+        thaw_processes();
+        enable_nonboot_cpus();
+        pm_restore_console();
+        return error;
 }
 
 static void unprepare_processes(void)
 {
-        enable_nonboot_cpus();
+        platform_finish();
         thaw_processes();
+        enable_nonboot_cpus();
         pm_restore_console();
 }
 
@@ -160,15 +166,9 @@ static int prepare_devices(void)
 {
         int error;
 
-        disable_nonboot_cpus();
-        if ((error = device_suspend(PMSG_FREEZE))) {
+        if ((error = device_suspend(PMSG_FREEZE)))
                 printk("Some devices failed to suspend\n");
-                platform_finish();
-                enable_nonboot_cpus();
-                return error;
-        }
-
-        return 0;
+        return error;
 }
 
 /**
@@ -185,9 +185,9 @@ int pm_suspend_disk(void)
         int error;
 
         error = prepare_processes();
-        if (!error) {
-                error = prepare_devices();
-        }
+        if (error)
+                return error;
+        error = prepare_devices();
 
         if (error) {
                 unprepare_processes();
@@ -233,6 +233,16 @@ static int software_resume(void)
 {
         int error;
 
+        if (!swsusp_resume_device) {
+                if (!strlen(resume_file))
+                        return -ENOENT;
+                swsusp_resume_device = name_to_dev_t(resume_file);
+                pr_debug("swsusp: Resume From Partition %s\n", resume_file);
+        } else {
+                pr_debug("swsusp: Resume From Partition %d:%d\n",
+                         MAJOR(swsusp_resume_device), MINOR(swsusp_resume_device));
+        }
+
         if (noresume) {
                 /**
                  * FIXME: If noresume is specified, we need to find the partition
@@ -250,7 +260,7 @@ static int software_resume(void)
 
         if ((error = prepare_processes())) {
                 swsusp_close();
-                goto Cleanup;
+                goto Done;
         }
 
         pr_debug("PM: Reading swsusp image.\n");