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platform/x86: intel-vbtn: Check ACPI_HANDLE() 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_HANDLE() check against NULL to the
platform/x86 intel-vbtn driver.

Fixes: 26173179fa ("platform/x86: intel-vbtn: Eval VBDL after registering our notifier")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/3426431.aeNJFYEL58@rafael.j.wysocki
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This commit is contained in:
Rafael J. Wysocki 2026-05-12 17:16:22 +02:00 committed by Ilpo Järvinen
parent 2765f16c12
commit a9f305c5a3
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GPG Key ID: 59AC4F6153E5CE31
1 changed files with 5 additions and 1 deletions
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6
drivers/platform/x86/intel/vbtn.c
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@ -275,12 +275,16 @@ static bool intel_vbtn_has_switches(acpi_handle handle, bool dual_accel)
static int intel_vbtn_probe(struct platform_device *device)
{
acpi_handle handle = ACPI_HANDLE(&device->dev);
bool dual_accel, has_buttons, has_switches;
struct intel_vbtn_priv *priv;
acpi_handle handle;
acpi_status status;
int err;
handle = ACPI_HANDLE(&device->dev);
if (!handle)
return -ENODEV;
dual_accel = dual_accel_detect();
has_buttons = acpi_has_method(handle, "VBDL");
has_switches = intel_vbtn_has_switches(handle, dual_accel);