Input: sun4i-ps2 - fix handling of platform_get_irq() error
platform_get_irq() returns -ERRNO on error. In such case comparison to 0 would pass the check. Fixes: e443631d ("Input: serio - add support for Alwinner A10/A20 PS/2 controller") Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Chen-Yu Tsai <wens@csie.org> Link: https://lore.kernel.org/r/20200828145744.3636-4-krzk@kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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