Hello Krzysztof,

On 02/03/2016 09:26 PM, Krzysztof Kozlowski wrote:

The regmap_irq_get_virq() can return 0 or -EINVAL in error conditions
but driver checked only for value of 0.

This could lead to a cast of -EINVAL to an unsigned int used as a
interrupt number for devm_request_threaded_irq(). Although this is not
yet fatal (devm_request_threaded_irq() will just fail with -EINVAL) but
might be a misleading when diagnosing errors.

Signed-off-by: Krzysztof Kozlowski <redacted>
Fixes: 6f1c1e71d933 ("mfd: max77686: Convert to use regmap_irq")

---

Good catch.

Reviewed-by: Javier Martinez Canillas <redacted>

Best regards,
-- 
Javier Martinez Canillas
Open Source Group
Samsung Research America

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