How to unbind a texture using driver API?

Is there an equivalent to cudaUnbindTexture() in the driver API? If not, is it sufficient to just cuMemFree() the device memory a given CUtexref is bound to (via cuTexRefSetAddress())?

cuTexRefDestroy() function is not operate…

Thanks!

PS: I can’t use the forum search with neither Safari not Firefox, so please bear with me if this question got answered earlier…