hotkey_poll_stop_sync 2687 drivers/platform/x86/thinkpad_acpi.c hotkey_poll_stop_sync(); hotkey_poll_stop_sync 2707 drivers/platform/x86/thinkpad_acpi.c hotkey_poll_stop_sync(); hotkey_poll_stop_sync 3167 drivers/platform/x86/thinkpad_acpi.c hotkey_poll_stop_sync();