1 files changed, 34 insertions, 48 deletions

diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index c7c8d537a063..b05469513842 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -85,12 +85,11 @@ acpi_memory_get_device_resources(struct acpi_memory_device *mem_device)
         struct acpi_resource *resource = NULL;
         struct acpi_resource_address64 address64;
 
-        ACPI_FUNCTION_TRACE("acpi_memory_get_device_resources");
 
         /* Get the range from the _CRS */
         status = acpi_get_current_resources(mem_device->handle, &buffer);
         if (ACPI_FAILURE(status))
-                return_VALUE(-EINVAL);
+                return -EINVAL;
 
         resource = (struct acpi_resource *)buffer.pointer;
         status = acpi_resource_to_address64(resource, &address64);
@@ -106,7 +105,7 @@ acpi_memory_get_device_resources(struct acpi_memory_device *mem_device)
         }
 
         acpi_os_free(buffer.pointer);
-        return_VALUE(0);
+        return 0;
 }
 
 static int
@@ -118,7 +117,6 @@ acpi_memory_get_device(acpi_handle handle,
         struct acpi_device *device = NULL;
         struct acpi_device *pdevice = NULL;
 
-        ACPI_FUNCTION_TRACE("acpi_memory_get_device");
 
         if (!acpi_bus_get_device(handle, &device) && device)
                 goto end;
@@ -126,14 +124,14 @@ acpi_memory_get_device(acpi_handle handle,
         status = acpi_get_parent(handle, &phandle);
         if (ACPI_FAILURE(status)) {
                 ACPI_EXCEPTION((AE_INFO, status, "Cannot find acpi parent"));
-                return_VALUE(-EINVAL);
+                return -EINVAL;
         }
 
         /* Get the parent device */
         status = acpi_bus_get_device(phandle, &pdevice);
         if (ACPI_FAILURE(status)) {
                 ACPI_EXCEPTION((AE_INFO, status, "Cannot get acpi bus device"));
-                return_VALUE(-EINVAL);
+                return -EINVAL;
         }
 
         /*
@@ -143,29 +141,28 @@ acpi_memory_get_device(acpi_handle handle,
         status = acpi_bus_add(&device, pdevice, handle, ACPI_BUS_TYPE_DEVICE);
         if (ACPI_FAILURE(status)) {
                 ACPI_EXCEPTION((AE_INFO, status, "Cannot add acpi bus"));
-                return_VALUE(-EINVAL);
+                return -EINVAL;
         }
 
       end:
         *mem_device = acpi_driver_data(device);
         if (!(*mem_device)) {
                 printk(KERN_ERR "\n driver data not found");
-                return_VALUE(-ENODEV);
+                return -ENODEV;
         }
 
-        return_VALUE(0);
+        return 0;
 }
 
 static int acpi_memory_check_device(struct acpi_memory_device *mem_device)
 {
         unsigned long current_status;
 
-        ACPI_FUNCTION_TRACE("acpi_memory_check_device");
 
         /* Get device present/absent information from the _STA */
         if (ACPI_FAILURE(acpi_evaluate_integer(mem_device->handle, "_STA",
                                                NULL, &current_status)))
-                return_VALUE(-ENODEV);
+                return -ENODEV;
         /*
          * Check for device status. Device should be
          * present/enabled/functioning.
@@ -173,16 +170,15 @@ static int acpi_memory_check_device(struct acpi_memory_device *mem_device)
         if (!((current_status & ACPI_MEMORY_STA_PRESENT)
               && (current_status & ACPI_MEMORY_STA_ENABLED)
               && (current_status & ACPI_MEMORY_STA_FUNCTIONAL)))
-                return_VALUE(-ENODEV);
+                return -ENODEV;
 
-        return_VALUE(0);
+        return 0;
 }
 
 static int acpi_memory_enable_device(struct acpi_memory_device *mem_device)
 {
         int result;
 
-        ACPI_FUNCTION_TRACE("acpi_memory_enable_device");
 
         /* Get the range from the _CRS */
         result = acpi_memory_get_device_resources(mem_device);
@@ -213,7 +209,6 @@ static int acpi_memory_powerdown_device(struct acpi_memory_device *mem_device)
         union acpi_object arg;
         unsigned long current_status;
 
-        ACPI_FUNCTION_TRACE("acpi_memory_powerdown_device");
 
         /* Issue the _EJ0 command */
         arg_list.count = 1;
@@ -225,20 +220,20 @@ static int acpi_memory_powerdown_device(struct acpi_memory_device *mem_device)
         /* Return on _EJ0 failure */
         if (ACPI_FAILURE(status)) {
                 ACPI_EXCEPTION((AE_INFO, status, "_EJ0 failed"));
-                return_VALUE(-ENODEV);
+                return -ENODEV;
         }
 
         /* Evalute _STA to check if the device is disabled */
         status = acpi_evaluate_integer(mem_device->handle, "_STA",
                                        NULL, &current_status);
         if (ACPI_FAILURE(status))
-                return_VALUE(-ENODEV);
+                return -ENODEV;
 
         /* Check for device status.  Device should be disabled */
         if (current_status & ACPI_MEMORY_STA_ENABLED)
-                return_VALUE(-EINVAL);
+                return -EINVAL;
 
-        return_VALUE(0);
+        return 0;
 }
 
 static int acpi_memory_disable_device(struct acpi_memory_device *mem_device)
@@ -247,7 +242,6 @@ static int acpi_memory_disable_device(struct acpi_memory_device *mem_device)
         u64 start = mem_device->start_addr;
         u64 len = mem_device->length;
 
-        ACPI_FUNCTION_TRACE("acpi_memory_disable_device");
 
         /*
          * Ask the VM to offline this memory range.
@@ -255,7 +249,7 @@ static int acpi_memory_disable_device(struct acpi_memory_device *mem_device)
          */
         result = remove_memory(start, len);
         if (result)
-                return_VALUE(result);
+                return result;
 
         /* Power-off and eject the device */
         result = acpi_memory_powerdown_device(mem_device);
@@ -274,7 +268,6 @@ static void acpi_memory_device_notify(acpi_handle handle, u32 event, void *data)
         struct acpi_memory_device *mem_device;
         struct acpi_device *device;
 
-        ACPI_FUNCTION_TRACE("acpi_memory_device_notify");
 
         switch (event) {
         case ACPI_NOTIFY_BUS_CHECK:
@@ -287,7 +280,7 @@ static void acpi_memory_device_notify(acpi_handle handle, u32 event, void *data)
                                           "\nReceived DEVICE CHECK notification for device\n"));
                 if (acpi_memory_get_device(handle, &mem_device)) {
                         printk(KERN_ERR PREFIX "Cannot find driver data\n");
-                        return_VOID;
+                        return;
                 }
 
                 if (!acpi_memory_check_device(mem_device)) {
@@ -329,7 +322,7 @@ static void acpi_memory_device_notify(acpi_handle handle, u32 event, void *data)
                 break;
         }
 
-        return_VOID;
+        return;
 }
 
 static int acpi_memory_device_add(struct acpi_device *device)
@@ -337,14 +330,13 @@ static int acpi_memory_device_add(struct acpi_device *device)
         int result;
         struct acpi_memory_device *mem_device = NULL;
 
-        ACPI_FUNCTION_TRACE("acpi_memory_device_add");
 
         if (!device)
-                return_VALUE(-EINVAL);
+                return -EINVAL;
 
         mem_device = kmalloc(sizeof(struct acpi_memory_device), GFP_KERNEL);
         if (!mem_device)
-                return_VALUE(-ENOMEM);
+                return -ENOMEM;
         memset(mem_device, 0, sizeof(struct acpi_memory_device));
 
         mem_device->handle = device->handle;
@@ -356,7 +348,7 @@ static int acpi_memory_device_add(struct acpi_device *device)
         result = acpi_memory_get_device_resources(mem_device);
         if (result) {
                 kfree(mem_device);
-                return_VALUE(result);
+                return result;
         }
 
         /* Set the device state */
@@ -364,22 +356,21 @@ static int acpi_memory_device_add(struct acpi_device *device)
 
         printk(KERN_INFO "%s \n", acpi_device_name(device));
 
-        return_VALUE(result);
+        return result;
 }
 
 static int acpi_memory_device_remove(struct acpi_device *device, int type)
 {
         struct acpi_memory_device *mem_device = NULL;
 
-        ACPI_FUNCTION_TRACE("acpi_memory_device_remove");
 
         if (!device || !acpi_driver_data(device))
-                return_VALUE(-EINVAL);
+                return -EINVAL;
 
         mem_device = (struct acpi_memory_device *)acpi_driver_data(device);
         kfree(mem_device);
 
-        return_VALUE(0);
+        return 0;
 }
 
 /*
@@ -392,16 +383,15 @@ static acpi_status is_memory_device(acpi_handle handle)
         struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
         struct acpi_device_info *info;
 
-        ACPI_FUNCTION_TRACE("is_memory_device");
 
         status = acpi_get_object_info(handle, &buffer);
         if (ACPI_FAILURE(status))
-                return_ACPI_STATUS(status);
+                return status;
 
         info = buffer.pointer;
         if (!(info->valid & ACPI_VALID_HID)) {
                 acpi_os_free(buffer.pointer);
-                return_ACPI_STATUS(AE_ERROR);
+                return AE_ERROR;
         }
 
         hardware_id = info->hardware_id.value;
@@ -410,7 +400,7 @@ static acpi_status is_memory_device(acpi_handle handle)
                 status = AE_ERROR;
 
         acpi_os_free(buffer.pointer);
-        return_ACPI_STATUS(status);
+        return status;
 }
 
 static acpi_status
@@ -419,18 +409,17 @@ acpi_memory_register_notify_handler(acpi_handle handle,
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_memory_register_notify_handler");
 
         status = is_memory_device(handle);
         if (ACPI_FAILURE(status)){
                 ACPI_EXCEPTION((AE_INFO, status, "handle is no memory device"));
-                return_ACPI_STATUS(AE_OK);      /* continue */
+                return AE_OK;   /* continue */
         }
 
         status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
                                              acpi_memory_device_notify, NULL);
         /* continue */
-        return_ACPI_STATUS(AE_OK);
+        return AE_OK;
 }
 
 static acpi_status
@@ -439,19 +428,18 @@ acpi_memory_deregister_notify_handler(acpi_handle handle,
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_memory_deregister_notify_handler");
 
         status = is_memory_device(handle);
         if (ACPI_FAILURE(status)){
                 ACPI_EXCEPTION((AE_INFO, status, "handle is no memory device"));
-                return_ACPI_STATUS(AE_OK);      /* continue */
+                return AE_OK;   /* continue */
         }
 
         status = acpi_remove_notify_handler(handle,
                                             ACPI_SYSTEM_NOTIFY,
                                             acpi_memory_device_notify);
 
-        return_ACPI_STATUS(AE_OK);      /* continue */
+        return AE_OK;   /* continue */
 }
 
 static int __init acpi_memory_device_init(void)
@@ -459,12 +447,11 @@ static int __init acpi_memory_device_init(void)
         int result;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_memory_device_init");
 
         result = acpi_bus_register_driver(&acpi_memory_device_driver);
 
         if (result < 0)
-                return_VALUE(-ENODEV);
+                return -ENODEV;
 
         status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
                                      ACPI_UINT32_MAX,
@@ -474,17 +461,16 @@ static int __init acpi_memory_device_init(void)
         if (ACPI_FAILURE(status)) {
                 ACPI_EXCEPTION((AE_INFO, status, "walk_namespace failed"));
                 acpi_bus_unregister_driver(&acpi_memory_device_driver);
-                return_VALUE(-ENODEV);
+                return -ENODEV;
         }
 
-        return_VALUE(0);
+        return 0;
 }
 
 static void __exit acpi_memory_device_exit(void)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_memory_device_exit");
 
         /*
          * Adding this to un-install notification handlers for all the device
@@ -500,7 +486,7 @@ static void __exit acpi_memory_device_exit(void)
 
         acpi_bus_unregister_driver(&acpi_memory_device_driver);
 
-        return_VOID;
+        return;
 }
 
 module_init(acpi_memory_device_init);