Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/mfasheh...

[pandora-kernel.git] / drivers / acpi / power.c

diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index fec225d..0ba7dfb 100644 (file)
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -108,7 +108,7 @@ acpi_power_get_context(acpi_handle handle,
                return result;
        }
 
-       *resource = (struct acpi_power_resource *)acpi_driver_data(device);
+       *resource = acpi_driver_data(device);
        if (!resource)
                return -ENODEV;
 
@@ -216,10 +216,8 @@ static int acpi_power_off_device(acpi_handle handle)
 {
        int result = 0;
        acpi_status status = AE_OK;
-       struct acpi_device *device = NULL;
        struct acpi_power_resource *resource = NULL;
 
-
        result = acpi_power_get_context(handle, &resource);
        if (result)
                return result;
@@ -230,13 +228,13 @@ static int acpi_power_off_device(acpi_handle handle)
        if (resource->references) {
                ACPI_DEBUG_PRINT((ACPI_DB_INFO,
                                  "Resource [%s] is still in use, dereferencing\n",
-                                 device->pnp.bus_id));
+                                 resource->device->pnp.bus_id));
                return 0;
        }
 
        if (resource->state == ACPI_POWER_RESOURCE_STATE_OFF) {
                ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] already off\n",
-                                 device->pnp.bus_id));
+                                 resource->device->pnp.bus_id));
                return 0;
        }
 
@@ -251,8 +249,7 @@ static int acpi_power_off_device(acpi_handle handle)
                return -ENOEXEC;
 
        /* Update the power resource's _device_ power state */
-       device = resource->device;
-       device->power.state = ACPI_STATE_D3;
+       resource->device->power.state = ACPI_STATE_D3;
 
        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] turned off\n",
                          resource->name));
@@ -445,7 +442,7 @@ static int acpi_power_seq_show(struct seq_file *seq, void *offset)
        struct acpi_power_resource *resource = NULL;
 
 
-       resource = (struct acpi_power_resource *)seq->private;
+       resource = seq->private;
 
        if (!resource)
                goto end;
@@ -535,10 +532,9 @@ static int acpi_power_add(struct acpi_device *device)
        if (!device)
                return -EINVAL;
 
-       resource = kmalloc(sizeof(struct acpi_power_resource), GFP_KERNEL);
+       resource = kzalloc(sizeof(struct acpi_power_resource), GFP_KERNEL);
        if (!resource)
                return -ENOMEM;
-       memset(resource, 0, sizeof(struct acpi_power_resource));
 
        resource->device = device;
        strcpy(resource->name, device->pnp.bus_id);
@@ -593,7 +589,7 @@ static int acpi_power_remove(struct acpi_device *device, int type)
        if (!device || !acpi_driver_data(device))
                return -EINVAL;
 
-       resource = (struct acpi_power_resource *)acpi_driver_data(device);
+       resource = acpi_driver_data(device);
 
        acpi_power_remove_fs(device);