Merge branch 'linus' into perfcounters/core

Merge reason: merge almost-rc8 into perfcounters/core, which was -rc6
              based - to pick up the latest upstream fixes.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 5 insertions, 20 deletions

diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index e71ca9cd81b2..5cb080e7eebd 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -215,8 +215,6 @@ static int create_image(int platform_mode)
         if (error)
                 return error;
 
-        device_pm_lock();
-
         /* At this point, device_suspend() has been called, but *not*
          * device_power_down(). We *must* call device_power_down() now.
          * Otherwise, drivers for some devices (e.g. interrupt controllers)
@@ -227,7 +225,7 @@ static int create_image(int platform_mode)
         if (error) {
                 printk(KERN_ERR "PM: Some devices failed to power down, "
                         "aborting hibernation\n");
-                goto Unlock;
+                return error;
         }
 
         error = platform_pre_snapshot(platform_mode);
@@ -241,9 +239,9 @@ static int create_image(int platform_mode)
 
         local_irq_disable();
 
-        sysdev_suspend(PMSG_FREEZE);
+        error = sysdev_suspend(PMSG_FREEZE);
         if (error) {
-                printk(KERN_ERR "PM: Some devices failed to power down, "
+                printk(KERN_ERR "PM: Some system devices failed to power down, "
                         "aborting hibernation\n");
                 goto Enable_irqs;
         }
@@ -280,9 +278,6 @@ static int create_image(int platform_mode)
         device_power_up(in_suspend ?
                 (error ? PMSG_RECOVER : PMSG_THAW) : PMSG_RESTORE);
 
- Unlock:
-        device_pm_unlock();
-
         return error;
 }
 
@@ -344,13 +339,11 @@ static int resume_target_kernel(bool platform_mode)
 {
         int error;
 
-        device_pm_lock();
-
         error = device_power_down(PMSG_QUIESCE);
         if (error) {
                 printk(KERN_ERR "PM: Some devices failed to power down, "
                         "aborting resume\n");
-                goto Unlock;
+                return error;
         }
 
         error = platform_pre_restore(platform_mode);
@@ -403,9 +396,6 @@ static int resume_target_kernel(bool platform_mode)
 
         device_power_up(PMSG_RECOVER);
 
- Unlock:
-        device_pm_unlock();
-
         return error;
 }
 
@@ -464,11 +454,9 @@ int hibernation_platform_enter(void)
                 goto Resume_devices;
         }
 
-        device_pm_lock();
-
         error = device_power_down(PMSG_HIBERNATE);
         if (error)
-                goto Unlock;
+                goto Resume_devices;
 
         error = hibernation_ops->prepare();
         if (error)
@@ -493,9 +481,6 @@ int hibernation_platform_enter(void)
 
         device_power_up(PMSG_RESTORE);
 
- Unlock:
-        device_pm_unlock();
-
  Resume_devices:
         entering_platform_hibernation = false;
         device_resume(PMSG_RESTORE);