volume_mutex     7262 drivers/platform/x86/thinkpad_acpi.c static struct mutex volume_mutex;
volume_mutex     7285 drivers/platform/x86/thinkpad_acpi.c 	if (mutex_lock_killable(&volume_mutex) < 0)
volume_mutex     7308 drivers/platform/x86/thinkpad_acpi.c 	mutex_unlock(&volume_mutex);
volume_mutex     7357 drivers/platform/x86/thinkpad_acpi.c 	if (mutex_lock_killable(&volume_mutex) < 0)
volume_mutex     7374 drivers/platform/x86/thinkpad_acpi.c 	mutex_unlock(&volume_mutex);
volume_mutex     7405 drivers/platform/x86/thinkpad_acpi.c 	if (mutex_lock_killable(&volume_mutex) < 0)
volume_mutex     7421 drivers/platform/x86/thinkpad_acpi.c 	mutex_unlock(&volume_mutex);
volume_mutex     7717 drivers/platform/x86/thinkpad_acpi.c 	mutex_init(&volume_mutex);