diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2026-05-12 18:26:54 +0200 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2026-05-12 10:57:03 -0700 |
| commit | 6f89d96fff65aec1ff12bc566fca0eb1bb59e16e (patch) | |
| tree | 4ecace8f4f2af0ade68b3e845aa713cc207ad29b /drivers/input/misc | |
| parent | a5fd88a5d63f812422e69682f3cb663d9d7f3e9c (diff) | |
Input: atlas - check ACPI_COMPANION() against NULL
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: b8303880b641 ("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>
Diffstat (limited to 'drivers/input/misc')
| -rw-r--r-- | drivers/input/misc/atlas_btns.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/input/misc/atlas_btns.c b/drivers/input/misc/atlas_btns.c index 47b31725e850..835ad45a9d65 100644 --- a/drivers/input/misc/atlas_btns.c +++ b/drivers/input/misc/atlas_btns.c @@ -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"); |