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Hans de Goede committed 14e9355363f
ACPI / video: Fix using an uninitialized mutex / list_head in acpi_video_handles_brightness_key_presses() If acpi_video_handles_brightness_key_presses() was called before acpi_video_register(), it would use the video_list mutex / list_head uninitialized. This patch fixes this by using DEFINE_MUTEX / LIST_HEAD when declaring these, instead of initializing them runtime from acpi_video_register(). Fixes: 90b066b15eda "ACPI / video: Add a acpi_video_handles_brightness_key_presses() helper" Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>