Use the new device_to_pm() helper to access Power Management callbacs (struct dev_pm_ops) for a particular device (struct device_driver).
No functional change intended.
Signed-off-by: Krzysztof Wilczyński kw@linux.com --- drivers/acpi/device_pm.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index 5832bc10aca8..b98a32c48fbe 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -1022,9 +1022,10 @@ static bool acpi_dev_needs_resume(struct device *dev, struct acpi_device *adev) int acpi_subsys_prepare(struct device *dev) { struct acpi_device *adev = ACPI_COMPANION(dev); + const struct dev_pm_ops *pm = driver_to_pm(dev->driver);
- if (dev->driver && dev->driver->pm && dev->driver->pm->prepare) { - int ret = dev->driver->pm->prepare(dev); + if (pm && pm->prepare) { + int ret = pm->prepare(dev);
if (ret < 0) return ret;