diff options
Diffstat (limited to 'drivers/platform/chrome/wilco_ec/event.c')
| -rw-r--r-- | drivers/platform/chrome/wilco_ec/event.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/platform/chrome/wilco_ec/event.c b/drivers/platform/chrome/wilco_ec/event.c index b6e935badc0e..1b5cb89839e0 100644 --- a/drivers/platform/chrome/wilco_ec/event.c +++ b/drivers/platform/chrome/wilco_ec/event.c @@ -452,8 +452,13 @@ static void hangup_device(struct event_device_data *dev_data) static int event_device_probe(struct platform_device *pdev) { struct event_device_data *dev_data; + struct acpi_device *adev; int error, minor; + adev = ACPI_COMPANION(&pdev->dev); + if (!adev) + return -ENODEV; + minor = ida_alloc_max(&event_ida, EVENT_MAX_DEV-1, GFP_KERNEL); if (minor < 0) { error = minor; @@ -494,8 +499,7 @@ static int event_device_probe(struct platform_device *pdev) goto free_dev_data; /* Install an ACPI notify handler. */ - error = acpi_dev_install_notify_handler(ACPI_COMPANION(&pdev->dev), - ACPI_DEVICE_NOTIFY, + error = acpi_dev_install_notify_handler(adev, ACPI_DEVICE_NOTIFY, event_device_notify, &pdev->dev); if (error) goto free_cdev; |