linux-wandboard

USB: core: be specific about attribute permissions

Instead of having to audit all sysfs attributes, to ensure we get them
right, use the default macros the driver core provides us (read-only,
read-write) to make the code simpler, and to prevent any mistakes from
ever happening.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>