From: Rafael J. Wysocki Date: Tue, 12 May 2026 16:35:54 +0000 (+0200) Subject: platform/chrome: chromeos_tbmc: Check ACPI_COMPANION() X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;h=c15dbae7c856fb53cc6ffb86c6c64ebb816d07c8;p=thirdparty%2Fkernel%2Flinux.git 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 Link: https://lore.kernel.org/r/1875121.VLH7GnMWUR@rafael.j.wysocki Signed-off-by: Tzung-Bi Shih --- diff --git a/drivers/platform/chrome/chromeos_tbmc.c b/drivers/platform/chrome/chromeos_tbmc.c index 5133806b2d958..fd756761a481f 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;