Instead of open coding this function use kstrtoul_from_user() directly.
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
Acked-by: NDouglas Gilbert <dgilbert@interlog.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>