linux-kernel - Re: [PATCH 2/3] usb: typec: anx7411: fix passing a valid pointer to 'PTR

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Message-ID: <YuEvdKTVNwY3eX4p@kroah.com>
Date:   Wed, 27 Jul 2022 14:28:36 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Xin Ji <xji@...logixsemi.com>
Cc:     Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        bliang@...logixsemi.com, qwen@...logixsemi.com,
        jli@...logixsemi.com, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] usb: typec: anx7411: fix passing a valid pointer to
 'PTR_ERR'

On Fri, Jul 22, 2022 at 04:18:35PM +0800, Xin Ji wrote:
> Fix anx7411_typec_register_altmode() warn: passing a valid pointer to
> 'PTR_ERR'.
> 
> Fixes: fe6d8a9c8e64 ("usb: typec: anx7411: Add Analogix PD ANX7411 support")
> Signed-off-by: Xin Ji <xji@...logixsemi.com>
> ---
>  drivers/usb/typec/anx7411.c | 11 ++++++-----
>  1 file changed, 6 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/usb/typec/anx7411.c b/drivers/usb/typec/anx7411.c
> index 7b45d7440a9d..dc86b6704cbd 100644
> --- a/drivers/usb/typec/anx7411.c
> +++ b/drivers/usb/typec/anx7411.c
> @@ -550,6 +550,7 @@ static int anx7411_typec_register_altmode(struct anx7411_data *ctx,
>  {
>  	struct device *dev = &ctx->spi_client->dev;
>  	struct typec_altmode_desc desc;
> +	struct typec_altmode *alt;
>  	int i;
>  
>  	desc.svid = svid;
> @@ -566,14 +567,14 @@ static int anx7411_typec_register_altmode(struct anx7411_data *ctx,
>  		return -ENOMEM;
>  	}
>  
> -	ctx->typec.amode[i] = typec_partner_register_altmode(ctx->typec.partner,
> -							     &desc);
> -	if (IS_ERR(ctx->typec.amode[i])) {
> +	alt = typec_partner_register_altmode(ctx->typec.partner, &desc);
> +	if (IS_ERR(alt)) {
>  		dev_err(dev, "failed to register altmode\n");
> -		ctx->typec.amode[i] = NULL;
> -		return PTR_ERR(ctx->typec.amode);
> +		return PTR_ERR(alt);
>  	}
>  
> +	ctx->typec.amode[i] = alt;
> +
>  	return 0;
>  }
>  
> -- 
> 2.25.1
> 

Does not apply to my tree :(