This commit does not change any logic here.  It just makes the code easier
to read.

This is how it looked like:
If err != 0 return err;
else return 0;
Signed-off-by: NRobert Kmiec <robert.r.kmiec@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>