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path: root/drivers/acpi/asus_acpi.c
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Diffstat (limited to 'drivers/acpi/asus_acpi.c')
-rw-r--r--drivers/acpi/asus_acpi.c32
1 files changed, 24 insertions, 8 deletions
diff --git a/drivers/acpi/asus_acpi.c b/drivers/acpi/asus_acpi.c
index f4c87750dbf..839f423d738 100644
--- a/drivers/acpi/asus_acpi.c
+++ b/drivers/acpi/asus_acpi.c
@@ -817,7 +817,7 @@ typedef int (proc_writefunc) (struct file * file, const char __user * buffer,
unsigned long count, void *data);
static int
-__init asus_proc_add(char *name, proc_writefunc * writefunc,
+asus_proc_add(char *name, proc_writefunc * writefunc,
proc_readfunc * readfunc, mode_t mode,
struct acpi_device *device)
{
@@ -836,7 +836,7 @@ __init asus_proc_add(char *name, proc_writefunc * writefunc,
return 0;
}
-static int __init asus_hotk_add_fs(struct acpi_device *device)
+static int asus_hotk_add_fs(struct acpi_device *device)
{
struct proc_dir_entry *proc;
mode_t mode;
@@ -954,7 +954,7 @@ static void asus_hotk_notify(acpi_handle handle, u32 event, void *data)
* This function is used to initialize the hotk with right values. In this
* method, we can make all the detection we want, and modify the hotk struct
*/
-static int __init asus_hotk_get_info(void)
+static int asus_hotk_get_info(void)
{
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
struct acpi_buffer dsdt = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -970,7 +970,7 @@ static int __init asus_hotk_get_info(void)
* HID), this bit will be moved. A global variable asus_info contains
* the DSDT header.
*/
- status = acpi_get_table(ACPI_TABLE_DSDT, 1, &dsdt);
+ status = acpi_get_table(ACPI_TABLE_ID_DSDT, 1, &dsdt);
if (ACPI_FAILURE(status))
printk(KERN_WARNING " Couldn't get the DSDT table header\n");
else
@@ -1101,7 +1101,7 @@ static int __init asus_hotk_get_info(void)
return AE_OK;
}
-static int __init asus_hotk_check(void)
+static int asus_hotk_check(void)
{
int result = 0;
@@ -1119,7 +1119,9 @@ static int __init asus_hotk_check(void)
return result;
}
-static int __init asus_hotk_add(struct acpi_device *device)
+static int asus_hotk_found;
+
+static int asus_hotk_add(struct acpi_device *device)
{
acpi_status status = AE_OK;
int result;
@@ -1180,6 +1182,8 @@ static int __init asus_hotk_add(struct acpi_device *device)
}
}
+ asus_hotk_found = 1;
+
end:
if (result) {
kfree(hotk);
@@ -1226,12 +1230,24 @@ static int __init asus_acpi_init(void)
asus_proc_dir->owner = THIS_MODULE;
result = acpi_bus_register_driver(&asus_hotk_driver);
- if (result < 1) {
- acpi_bus_unregister_driver(&asus_hotk_driver);
+ if (result < 0) {
remove_proc_entry(PROC_ASUS, acpi_root_dir);
return -ENODEV;
}
+ /*
+ * This is a bit of a kludge. We only want this module loaded
+ * for ASUS systems, but there's currently no way to probe the
+ * ACPI namespace for ASUS HIDs. So we just return failure if
+ * we didn't find one, which will cause the module to be
+ * unloaded.
+ */
+ if (!asus_hotk_found) {
+ acpi_bus_unregister_driver(&asus_hotk_driver);
+ remove_proc_entry(PROC_ASUS, acpi_root_dir);
+ return result;
+ }
+
return 0;
}