diff options
Diffstat (limited to 'drivers/platform/x86/dell-wmi.c')
-rw-r--r-- | drivers/platform/x86/dell-wmi.c | 34 |
1 files changed, 19 insertions, 15 deletions
diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c index 916ccb2b316c..bed764e3ea2a 100644 --- a/drivers/platform/x86/dell-wmi.c +++ b/drivers/platform/x86/dell-wmi.c @@ -142,7 +142,7 @@ static struct key_entry *dell_wmi_keymap = dell_legacy_wmi_keymap; static struct input_dev *dell_wmi_input_dev; -static struct key_entry *dell_wmi_get_entry_by_scancode(int code) +static struct key_entry *dell_wmi_get_entry_by_scancode(unsigned int code) { struct key_entry *key; @@ -153,7 +153,7 @@ static struct key_entry *dell_wmi_get_entry_by_scancode(int code) return NULL; } -static struct key_entry *dell_wmi_get_entry_by_keycode(int keycode) +static struct key_entry *dell_wmi_get_entry_by_keycode(unsigned int keycode) { struct key_entry *key; @@ -164,8 +164,8 @@ static struct key_entry *dell_wmi_get_entry_by_keycode(int keycode) return NULL; } -static int dell_wmi_getkeycode(struct input_dev *dev, int scancode, - int *keycode) +static int dell_wmi_getkeycode(struct input_dev *dev, + unsigned int scancode, unsigned int *keycode) { struct key_entry *key = dell_wmi_get_entry_by_scancode(scancode); @@ -177,13 +177,11 @@ static int dell_wmi_getkeycode(struct input_dev *dev, int scancode, return -EINVAL; } -static int dell_wmi_setkeycode(struct input_dev *dev, int scancode, int keycode) +static int dell_wmi_setkeycode(struct input_dev *dev, + unsigned int scancode, unsigned int keycode) { struct key_entry *key; - int old_keycode; - - if (keycode < 0 || keycode > KEY_MAX) - return -EINVAL; + unsigned int old_keycode; key = dell_wmi_get_entry_by_scancode(scancode); if (key && key->type == KE_KEY) { @@ -202,8 +200,13 @@ static void dell_wmi_notify(u32 value, void *context) struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; static struct key_entry *key; union acpi_object *obj; + acpi_status status; - wmi_get_event_data(value, &response); + status = wmi_get_event_data(value, &response); + if (status != AE_OK) { + printk(KERN_INFO "dell-wmi: bad event status 0x%x\n", status); + return; + } obj = (union acpi_object *)response.pointer; @@ -323,8 +326,9 @@ static int __init dell_wmi_input_setup(void) static int __init dell_wmi_init(void) { int err; + acpi_status status; - if (wmi_has_guid(DELL_EVENT_GUID)) { + if (!wmi_has_guid(DELL_EVENT_GUID)) { printk(KERN_WARNING "dell-wmi: No known WMI GUID found\n"); return -ENODEV; } @@ -336,14 +340,14 @@ static int __init dell_wmi_init(void) if (err) return err; - err = wmi_install_notify_handler(DELL_EVENT_GUID, + status = wmi_install_notify_handler(DELL_EVENT_GUID, dell_wmi_notify, NULL); - if (err) { + if (ACPI_FAILURE(status)) { input_unregister_device(dell_wmi_input_dev); printk(KERN_ERR "dell-wmi: Unable to register notify handler - %d\n", - err); - return err; + status); + return -ENODEV; } return 0; |