gadget/f_mass_storage: stop messing with the address limit

Instead use kernel_read/write consistently, which also makes sparse
happy.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Christoph Hellwig 2017-09-01 17:39:21 +02:00 • committed by Al Viro
commit 05a4a33b6d