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
GPIOs - as returned by of_get_named_gpio() and used by the gpiolib - are signed integers, where negative number indicates error. The return value of of_get_named_gpio() should not be assigned to an unsigned int because in case of !CONFIG_GPIOLIB such number would be a valid GPIO. Fixes: c04c674fadeb ("nfc: s3fwrn5: Add driver for Samsung S3FWRN5 NFC Chip") Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20201123162351.209100-1-krzk@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>