On Sun, 10 Jul 2016 01:17:05 +0800 chengang@xxxxxxxxxxxxxxxx wrote: > For a pure output parameter: > > - When callee fails, the caller should not assume the output parameter > is still valid. > > - And callee should not assume the pure output parameter must be > provided by caller -- caller has right to pass NULL when caller does > not care about it. Sorry, I don't think this one is worth merging really. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>