Use new 'datap' variable in order to remove duplicated castings.
Signed-off-by: NNamhyung Kim <namhyung@gmail.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>