diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2026-05-12 18:35:54 +0200 |
|---|---|---|
| committer | Tzung-Bi Shih <tzungbi@kernel.org> | 2026-05-13 02:19:46 +0000 |
| commit | c15dbae7c856fb53cc6ffb86c6c64ebb816d07c8 (patch) | |
| tree | 91387dae0707f68b287d1c165bed304c25bc2a2e | |
| parent | 8a4a217f617b1ac2f8c095f33efd67d947ddb2cf (diff) | |
platform/chrome: chromeos_tbmc: Check ACPI_COMPANION()
Every platform driver can be forced to match a device that doesn't match
its list of device IDs because of device_match_driver_override(), so
platform drivers that rely on the existence of a device's ACPI companion
object need to verify its presence.
Accordingly, add a requisite ACPI_COMPANION() check against NULL to the
chromeos_tbmc driver.
Fixes: a2676ead257f ("platform/chrome: chromeos_tbmc: Convert to a platform driver")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/1875121.VLH7GnMWUR@rafael.j.wysocki
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
| -rw-r--r-- | drivers/platform/chrome/chromeos_tbmc.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/platform/chrome/chromeos_tbmc.c b/drivers/platform/chrome/chromeos_tbmc.c index 5133806b2d95..fd756761a481 100644 --- a/drivers/platform/chrome/chromeos_tbmc.c +++ b/drivers/platform/chrome/chromeos_tbmc.c @@ -69,9 +69,13 @@ static int chromeos_tbmc_probe(struct platform_device *pdev) { struct input_dev *idev; struct device *dev = &pdev->dev; - struct acpi_device *adev = ACPI_COMPANION(dev); + struct acpi_device *adev; int ret; + adev = ACPI_COMPANION(dev); + if (!adev) + return -ENODEV; + idev = devm_input_allocate_device(dev); if (!idev) return -ENOMEM; |