hwmon: (acpi_power_meter) Use acpi_bus_get_acpi_device()
In read_domain_devices(), acpi_bus_get_device() is called to obtain the ACPI device object attached to the given ACPI handle and subsequently that object is passed to get_device() for reference counting, but there is a window between the acpi_bus_get_device() and get_device() calls in which the ACPI device object in question may go away. To address this issue, make read_domain_devices() use acpi_bus_get_acpi_device() to reference count and return the given ACPI device object in one go and export that function to modules. While at it, also make read_domain_devices() and remove_domain_devices() use acpi_dev_put() instead of calling put_device() directly on the ACPI device objects returned by acpi_bus_get_acpi_device(). Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/11871063.O9o76ZdvQC@kreacherSigned-off-by: NGuenter Roeck <linux@roeck-us.net>
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