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path: root/drivers/acpi/scan.c
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Diffstat (limited to 'drivers/acpi/scan.c')
-rw-r--r--drivers/acpi/scan.c69
1 files changed, 30 insertions, 39 deletions
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 8ff510b91d8..781435d7e36 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -95,7 +95,7 @@ acpi_device_modalias_show(struct device *dev, struct device_attribute *attr, cha
}
static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL);
-static int acpi_bus_hot_remove_device(void *context)
+static void acpi_bus_hot_remove_device(void *context)
{
struct acpi_device *device;
acpi_handle handle = context;
@@ -104,10 +104,10 @@ static int acpi_bus_hot_remove_device(void *context)
acpi_status status = AE_OK;
if (acpi_bus_get_device(handle, &device))
- return 0;
+ return;
if (!device)
- return 0;
+ return;
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Hot-removing device %s...\n", dev_name(&device->dev)));
@@ -115,7 +115,7 @@ static int acpi_bus_hot_remove_device(void *context)
if (acpi_bus_trim(device, 1)) {
printk(KERN_ERR PREFIX
"Removing device failed\n");
- return -1;
+ return;
}
/* power off device */
@@ -142,9 +142,10 @@ static int acpi_bus_hot_remove_device(void *context)
*/
status = acpi_evaluate_object(handle, "_EJ0", &arg_list, NULL);
if (ACPI_FAILURE(status))
- return -ENODEV;
+ printk(KERN_WARNING PREFIX
+ "Eject device failed\n");
- return 0;
+ return;
}
static ssize_t
@@ -155,7 +156,6 @@ acpi_eject_store(struct device *d, struct device_attribute *attr,
acpi_status status;
acpi_object_type type = 0;
struct acpi_device *acpi_device = to_acpi_device(d);
- struct task_struct *task;
if ((!count) || (buf[0] != '1')) {
return -EINVAL;
@@ -172,11 +172,7 @@ acpi_eject_store(struct device *d, struct device_attribute *attr,
goto err;
}
- /* remove the device in another thread to fix the deadlock issue */
- task = kthread_run(acpi_bus_hot_remove_device,
- acpi_device->handle, "acpi_hot_remove_device");
- if (IS_ERR(task))
- ret = PTR_ERR(task);
+ acpi_os_hotplug_execute(acpi_bus_hot_remove_device, acpi_device->handle);
err:
return ret;
}
@@ -198,12 +194,12 @@ acpi_device_path_show(struct device *dev, struct device_attribute *attr, char *b
int result;
result = acpi_get_name(acpi_dev->handle, ACPI_FULL_PATHNAME, &path);
- if(result)
+ if (result)
goto end;
result = sprintf(buf, "%s\n", (char*)path.pointer);
kfree(path.pointer);
- end:
+end:
return result;
}
static DEVICE_ATTR(path, 0444, acpi_device_path_show, NULL);
@@ -217,21 +213,21 @@ static int acpi_device_setup_files(struct acpi_device *dev)
/*
* Devices gotten from FADT don't have a "path" attribute
*/
- if(dev->handle) {
+ if (dev->handle) {
result = device_create_file(&dev->dev, &dev_attr_path);
- if(result)
+ if (result)
goto end;
}
- if(dev->flags.hardware_id) {
+ if (dev->flags.hardware_id) {
result = device_create_file(&dev->dev, &dev_attr_hid);
- if(result)
+ if (result)
goto end;
}
- if (dev->flags.hardware_id || dev->flags.compatible_ids){
+ if (dev->flags.hardware_id || dev->flags.compatible_ids) {
result = device_create_file(&dev->dev, &dev_attr_modalias);
- if(result)
+ if (result)
goto end;
}
@@ -242,7 +238,7 @@ static int acpi_device_setup_files(struct acpi_device *dev)
status = acpi_get_handle(dev->handle, "_EJ0", &temp);
if (ACPI_SUCCESS(status))
result = device_create_file(&dev->dev, &dev_attr_eject);
- end:
+end:
return result;
}
@@ -262,9 +258,9 @@ static void acpi_device_remove_files(struct acpi_device *dev)
if (dev->flags.hardware_id || dev->flags.compatible_ids)
device_remove_file(&dev->dev, &dev_attr_modalias);
- if(dev->flags.hardware_id)
+ if (dev->flags.hardware_id)
device_remove_file(&dev->dev, &dev_attr_hid);
- if(dev->handle)
+ if (dev->handle)
device_remove_file(&dev->dev, &dev_attr_path);
}
/* --------------------------------------------------------------------------
@@ -512,7 +508,7 @@ static int acpi_device_register(struct acpi_device *device,
break;
}
}
- if(!found) {
+ if (!found) {
acpi_device_bus_id = new_bus_id;
strcpy(acpi_device_bus_id->bus_id, device->flags.hardware_id ? device->pnp.hardware_id : "device");
acpi_device_bus_id->instance_no = 0;
@@ -530,22 +526,21 @@ static int acpi_device_register(struct acpi_device *device,
if (device->parent)
device->dev.parent = &parent->dev;
device->dev.bus = &acpi_bus_type;
- device_initialize(&device->dev);
device->dev.release = &acpi_device_release;
- result = device_add(&device->dev);
- if(result) {
- dev_err(&device->dev, "Error adding device\n");
+ result = device_register(&device->dev);
+ if (result) {
+ dev_err(&device->dev, "Error registering device\n");
goto end;
}
result = acpi_device_setup_files(device);
- if(result)
+ if (result)
printk(KERN_ERR PREFIX "Error creating sysfs interface for device %s\n",
dev_name(&device->dev));
device->removal_type = ACPI_BUS_REMOVAL_NORMAL;
return 0;
- end:
+end:
mutex_lock(&acpi_device_lock);
if (device->parent)
list_del(&device->node);
@@ -577,7 +572,7 @@ static void acpi_device_unregister(struct acpi_device *device, int type)
* @device: the device to add and initialize
* @driver: driver for the device
*
- * Used to initialize a device via its device driver. Called whenever a
+ * Used to initialize a device via its device driver. Called whenever a
* driver is bound to a device. Invokes the driver's add() ops.
*/
static int
@@ -585,7 +580,6 @@ acpi_bus_driver_init(struct acpi_device *device, struct acpi_driver *driver)
{
int result = 0;
-
if (!device || !driver)
return -EINVAL;
@@ -802,7 +796,7 @@ static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
if (!acpi_match_device_ids(device, button_device_ids))
device->wakeup.flags.run_wake = 1;
- end:
+end:
if (ACPI_FAILURE(status))
device->flags.wake_capable = 0;
return 0;
@@ -1070,7 +1064,7 @@ static void acpi_device_set_id(struct acpi_device *device,
break;
}
- /*
+ /*
* \_SB
* ----
* Fix for the system root bus device -- the only root-level device.
@@ -1320,7 +1314,7 @@ acpi_add_single_object(struct acpi_device **child,
device->parent->ops.bind(device);
}
- end:
+end:
if (!result)
*child = device;
else {
@@ -1464,7 +1458,6 @@ acpi_bus_add(struct acpi_device **child,
return result;
}
-
EXPORT_SYMBOL(acpi_bus_add);
int acpi_bus_start(struct acpi_device *device)
@@ -1484,7 +1477,6 @@ int acpi_bus_start(struct acpi_device *device)
}
return result;
}
-
EXPORT_SYMBOL(acpi_bus_start);
int acpi_bus_trim(struct acpi_device *start, int rmdevice)
@@ -1542,7 +1534,6 @@ int acpi_bus_trim(struct acpi_device *start, int rmdevice)
}
EXPORT_SYMBOL_GPL(acpi_bus_trim);
-
static int acpi_bus_scan_fixed(struct acpi_device *root)
{
int result = 0;
@@ -1610,6 +1601,6 @@ int __init acpi_scan_init(void)
if (result)
acpi_device_unregister(acpi_root, ACPI_BUS_REMOVAL_NORMAL);
- Done:
+Done:
return result;
}
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-11-04 12:24:25 +0000