linux-kernel - Re: [PATCH net-next 1/3] nfc: s3fwrn5: use signed integer for parsing GPIO numbers

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Date:   Thu, 26 Nov 2020 18:01:54 +0100
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     bongsu.jeon2@...il.com
Cc:     k.opasiak@...sung.com, linux-nfc@...ts.01.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org
Subject: Re: [PATCH net-next 1/3] nfc: s3fwrn5: use signed integer for
 parsing GPIO numbers

On Fri, Nov 27, 2020 at 12:33:37AM +0900, bongsu.jeon2@...il.com wrote:
> From: Krzysztof Kozlowski <krzk@...nel.org>
> 
> 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")
> Cc: <stable@...r.kernel.org>
> Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>

Why do you send my patch?

Best regards,
Krzysztof