> > This is especially true if you have trained yourself to know that > > free_netdev() can't accept NULL pointers. > > Do you need to adjust your concerns a bit over time when function variants > provide a corresponding safety check in their implementations? There would not seem to be any _need_ to do so. An unnecessary null test is always safe. The only real problem that I can see with an unnecessary null test in error handling code (intrinsically not critical performance wise) is if it gives the illusion that a value can be null when it cannot. julia _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel