ring-buffer-benchmark: Fix the wrong type
ring-buffer-benchmark: Fix the wrong type

The macro 'module_param' shows that the type of the
variable disable_reader and write_iteration is unsigned
integer. so, we change their type form int to unsigned int.

Link: http://lkml.kernel.org/r/1433923927-67782-1-git-send-email-e68b6ff438429ca41648c25d0f54e970cf858504@huawei.com

Signed-off-by: Wang Long <e68b6ff438429ca41648c25d0f54e970cf858504@huawei.com>
Signed-off-by: Steven Rostedt <43232e92d70cc7aa53504ad0397085ee47bad87f@goodmis.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs