Pull bugfix into test branch

Conflicts:

	kernel/power/disk.c

diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 215f5b30a1f1993f5fa2dab51be452d6e90b3e92..54ce12ab43d786680c275a3629de0227b1a13df1 100644 (file)
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -48,7 +48,7 @@ struct dock_station {
        unsigned long last_dock_time;
        u32 flags;
        spinlock_t dd_lock;
-       spinlock_t hp_lock;
+       struct mutex hp_lock;
        struct list_head dependent_devices;
        struct list_head hotplug_devices;
 };
@@ -118,9 +118,9 @@ static void
 dock_add_hotplug_device(struct dock_station *ds,
                        struct dock_dependent_device *dd)
 {
-       spin_lock(&ds->hp_lock);
+       mutex_lock(&ds->hp_lock);
        list_add_tail(&dd->hotplug_list, &ds->hotplug_devices);
-       spin_unlock(&ds->hp_lock);
+       mutex_unlock(&ds->hp_lock);
 }
 
 /**
@@ -134,9 +134,9 @@ static void
 dock_del_hotplug_device(struct dock_station *ds,
                        struct dock_dependent_device *dd)
 {
-       spin_lock(&ds->hp_lock);
+       mutex_lock(&ds->hp_lock);
        list_del(&dd->hotplug_list);
-       spin_unlock(&ds->hp_lock);
+       mutex_unlock(&ds->hp_lock);
 }
 
 /**
@@ -299,7 +299,7 @@ static void hotplug_dock_devices(struct dock_station *ds, u32 event)
 {
        struct dock_dependent_device *dd;
 
-       spin_lock(&ds->hp_lock);
+       mutex_lock(&ds->hp_lock);
 
        /*
         * First call driver specific hotplug functions
@@ -321,7 +321,7 @@ static void hotplug_dock_devices(struct dock_station *ds, u32 event)
                else
                        dock_create_acpi_device(dd->handle);
        }
-       spin_unlock(&ds->hp_lock);
+       mutex_unlock(&ds->hp_lock);
 }
 
 static void dock_event(struct dock_station *ds, u32 event, int num)
@@ -681,7 +681,7 @@ static int dock_add(acpi_handle handle)
        INIT_LIST_HEAD(&dock_station->dependent_devices);
        INIT_LIST_HEAD(&dock_station->hotplug_devices);
        spin_lock_init(&dock_station->dd_lock);
-       spin_lock_init(&dock_station->hp_lock);
+       mutex_init(&dock_station->hp_lock);
        ATOMIC_INIT_NOTIFIER_HEAD(&dock_notifier_list);
 
        /* initialize platform device stuff */

diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index 0b00f56c2ad0ad369fdaa42d40e24c6f56720881..88fc5d7ac737402c18db0306049b5873effeed55 100644 (file)
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -60,9 +60,11 @@ static void power_down(suspend_disk_method_t mode)
 {
        switch(mode) {
        case PM_DISK_PLATFORM:
-               kernel_shutdown_prepare(SYSTEM_SUSPEND_DISK);
-               pm_ops->enter(PM_SUSPEND_DISK);
-               break;
+               if (pm_ops && pm_ops->enter) {
+                       kernel_shutdown_prepare(SYSTEM_SUSPEND_DISK);
+                       pm_ops->enter(PM_SUSPEND_DISK);
+                       break;
+               }
        case PM_DISK_SHUTDOWN:
                kernel_power_off();
                break;

diff --git a/kernel/power/main.c b/kernel/power/main.c
index 500eb87f643dd9ff56d08079a29c506e7140b777..ff3a6182f5f0df3fb479cbd56092dd0ee8e1ff2e 100644 (file)
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -29,7 +29,7 @@
 DEFINE_MUTEX(pm_mutex);
 
 struct pm_ops *pm_ops;
-suspend_disk_method_t pm_disk_mode = PM_DISK_SHUTDOWN;
+suspend_disk_method_t pm_disk_mode = PM_DISK_PLATFORM;
 
 /**
  *     pm_set_ops - Set the global power method table.