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Input: atlas - check ACPI_COMPANION() against NULL

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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
atlas_btns driver.

Fixes: b8303880b6 ("Input: atlas - convert ACPI driver to a platform one")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/8696590.T7Z3S40VBb@rafael.j.wysocki
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Rafael J. Wysocki
2026-05-12 18:26:54 +02:00
committed by Dmitry Torokhov
parent a5fd88a5d6
commit 6f89d96fff
1 changed files with 5 additions and 1 deletions
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6
drivers/input/misc/atlas_btns.c
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@@ -60,11 +60,15 @@ static acpi_status acpi_atlas_button_handler(u32 function,
static int atlas_acpi_button_probe(struct platform_device *pdev)
{
struct acpi_device *device = ACPI_COMPANION(&pdev->dev);
struct acpi_device *device;
acpi_status status;
int i;
int err;
device = ACPI_COMPANION(&pdev->dev);
if (!device)
return -ENODEV;
input_dev = input_allocate_device();
if (!input_dev) {
pr_err("unable to allocate input device\n");