On Friday 31 May 2013 10:00:29 Dan Murphy wrote: > My consideration was that since this is an exported symbol that a driver > could call this API explicitly without checking for > the function pointer first, there is a potential of calling a NULL pointer. Drivers never call a filter function directly, so that is not an issue. Even if a driver would try it, that would not actually compile. Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html