linux-kernel - Re: [PATCH] thermal: imx_sc_thermal: Fix incorrect data type

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Message-ID: <CAHLCerODxv9jAhDPLHSHRVvsmPtBvj2X-CzFcFo1Vc7EZF+9og@mail.gmail.com>
Date:   Thu, 19 Mar 2020 14:24:44 +0530
From:   Amit Kucheria <amit.kucheria@...durent.com>
To:     Anson Huang <Anson.Huang@....com>
Cc:     Zhang Rui <rui.zhang@...el.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>, kernel@...gutronix.de,
        Fabio Estevam <festevam@...il.com>,
        Linux PM list <linux-pm@...r.kernel.org>,
        lakml <linux-arm-kernel@...ts.infradead.org>,
        LKML <linux-kernel@...r.kernel.org>, Linux-imx@....com
Subject: Re: [PATCH] thermal: imx_sc_thermal: Fix incorrect data type

On Thu, Mar 19, 2020 at 2:03 PM Anson Huang <Anson.Huang@....com> wrote:
>
> The temperature value passed from SCU could be negative value,
> the data type should be signed instead of unsigned.
>
> Fixes: ed0843633fee ("thermal: imx_sc: add i.MX system controller thermal support")
> Signed-off-by: Anson Huang <Anson.Huang@....com>

Reviewed-by: Amit Kucheria <amit.kucheria@...aro.org>

> ---
>  drivers/thermal/imx_sc_thermal.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/thermal/imx_sc_thermal.c b/drivers/thermal/imx_sc_thermal.c
> index dbb277a..a8723b1 100644
> --- a/drivers/thermal/imx_sc_thermal.c
> +++ b/drivers/thermal/imx_sc_thermal.c
> @@ -30,8 +30,8 @@ struct req_get_temp {
>  } __packed __aligned(4);
>
>  struct resp_get_temp {
> -       u16 celsius;
> -       u8 tenths;
> +       s16 celsius;
> +       s8 tenths;
>  } __packed __aligned(4);
>
>  struct imx_sc_msg_misc_get_temp {
> --
> 2.7.4
>