As indicated by checkpatch.pl, "WARNING: Use of volatile is usually wrong: ...". The variables in the private data that are marked volatile don't need to be. Remove the volatile. Also, cleanup the comments to avoid > 80 char lines. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>