Input: resistive-adc-touch - fix division by zero error on z1 == 0
For proper pressure calculation we need at least x and z1 to be non zero. Even worse, in case z1 we may run in to division by zero error. Fixes: 60b7db91 ("Input: resistive-adc-touch - rework mapping of channels") Signed-off-by:Oleksij Rempel <o.rempel@pengutronix.de> Link: https://lore.kernel.org/r/20211007095727.29579-1-o.rempel@pengutronix.deSigned-off-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com>
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