Messages in this thread | | | Date | Thu, 09 Apr 2009 08:43:33 +0800 | From | Li Zefan <> | Subject | Re: [PATCH 4/6] xfs: use memdup_user() |
| |
Roland Dreier wrote: > > wouldn't NULL be a better error return for this kind of interface, > > matching kmalloc? > > I guess returning an error code from memdup_user() lets callers > distinguish between ENOMEM and EFAULT. Not sure if that's important or > not but there probably are at least some sites that care. >
Right, and this API is simlilar to strndup_user().
| |