On Mon, Aug 19, 2019 at 09:41:54AM -0700, Aaron Armstrong Skomra wrote:

The EKR ring claims a range of 0 to 71 but actually reports
values 1 to 72. The ring is used in relative mode so this
change should not affect users.

Signed-off-by: Aaron Armstrong Skomra <redacted>
Fixes: 72b236d60218f ("HID: wacom: Add support for Express Key Remote.")
Cc: <redacted> # v4.3+
Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
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Patch specifically targeted to v4.9.189

Is this not a problem upstream as well? Why not?

If it is, this patch will need to go upstream first, and then it'll get
to stable branches from there.