diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2026-05-08 19:40:31 +0200 |
|---|---|---|
| committer | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2026-05-11 19:10:06 +0300 |
| commit | b2fc2c6ebbd2d49935c8960755d8170faead2159 (patch) | |
| tree | ff26f146c87d351b96f6572fe818b30630284281 /drivers | |
| parent | 3b95f36464ec161bcf14c5d1e5f9d5d5e9464582 (diff) | |
platform/x86: xo15-ebook: Fix wakeup source and GPE handling
The device_set_wakeup_enable() call in ebook_switch_add() doesn't
actually do anything because power.can_wakeup is not set for ACPI
device objects. Moreover, had it done anything, it would have
registered a wakeup source object that wouldn't have been used
going forward and that wakeup source would have been leaked after
driver removal because ebook_switch_remove() doesn't clean it up.
Accordingly, remove that call from ebook_switch_add().
Also prevent leaking an enabled ACPI GPE after removing the driver by
adding appropriate cleanup code to ebook_switch_remove().
Fixes: 89ca11771a4b ("OLPC XO-1.5 ebook switch driver")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/1966125.tdWV9SEqCh@rafael.j.wysocki
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/platform/x86/xo15-ebook.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/platform/x86/xo15-ebook.c b/drivers/platform/x86/xo15-ebook.c index 4d1b1b310cc5..1568169b7872 100644 --- a/drivers/platform/x86/xo15-ebook.c +++ b/drivers/platform/x86/xo15-ebook.c @@ -38,6 +38,7 @@ MODULE_DEVICE_TABLE(acpi, ebook_device_ids); struct ebook_switch { struct input_dev *input; char phys[32]; /* for input device */ + bool gpe_enabled; }; static int ebook_send_state(struct acpi_device *device) @@ -128,7 +129,7 @@ static int ebook_switch_add(struct acpi_device *device) /* Button's GPE is run-wake GPE */ acpi_enable_gpe(device->wakeup.gpe_device, device->wakeup.gpe_number); - device_set_wakeup_enable(&device->dev, true); + button->gpe_enabled = true; } return 0; @@ -144,6 +145,10 @@ static void ebook_switch_remove(struct acpi_device *device) { struct ebook_switch *button = acpi_driver_data(device); + if (button->gpe_enabled) + acpi_disable_gpe(device->wakeup.gpe_device, + device->wakeup.gpe_number); + input_unregister_device(button->input); kfree(button); } |