In various functions a return code variable is defined at the top of
function, for example;
rc = -ENODEV;
and then the variable is returned. This makes it harder to read since
it separates the error code from the return site.
Return the error code directly instead of using a variable.
Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>