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platform/x86: hp_accel: 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
platform/x86 hp_accel driver.

Fixes: 8ebcb6c94c ("platform/x86: hp_accel: Convert to be a platform driver")
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/2425918.ElGaqSPkdT@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 17:12:40 +02:00 committed by Ilpo Järvinen
parent e7a9a6ea40
commit abfbe5ee8a
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1 changed files with 3 additions and 0 deletions
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drivers/platform/x86/hp/hp_accel.c
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@ -300,6 +300,9 @@ static int lis3lv02d_probe(struct platform_device *device)
int ret;
lis3_dev.bus_priv = ACPI_COMPANION(&device->dev);
if (!lis3_dev.bus_priv)
return -ENODEV;
lis3_dev.init = lis3lv02d_acpi_init;
lis3_dev.read = lis3lv02d_acpi_read;
lis3_dev.write = lis3lv02d_acpi_write;