linux-kernel - Re: [PATCH] hwmon: (aquacomputer_d5next) Fix an error handling path in aqc

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Date:   Sun, 22 May 2022 07:35:14 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>
Cc:     dan.carpenter@...cle.com, Aleksa Savic <savicaleksa83@...il.com>,
        Jack Doan <me@...kdoan.com>, Jean Delvare <jdelvare@...e.com>,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        linux-hwmon@...r.kernel.org
Subject: Re: [PATCH] hwmon: (aquacomputer_d5next) Fix an error handling path
 in aqc_probe()

On Sun, May 22, 2022 at 03:14:23PM +0200, Christophe JAILLET wrote:
> If no memory can be allocated, some resources still need to be released as
> already done in the other error handling paths.
> 
> Fixes: 752b927951ea ("hwmon: (aquacomputer_d5next) Add support for Aquacomputer Octo")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>

Applied.

Thanks,
Guenter

> ---
>  drivers/hwmon/aquacomputer_d5next.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/hwmon/aquacomputer_d5next.c b/drivers/hwmon/aquacomputer_d5next.c
> index 7d2e7279abfb..a0e69f7ece36 100644
> --- a/drivers/hwmon/aquacomputer_d5next.c
> +++ b/drivers/hwmon/aquacomputer_d5next.c
> @@ -783,8 +783,10 @@ static int aqc_probe(struct hid_device *hdev, const struct hid_device_id *id)
>  	priv->name = aqc_device_names[priv->kind];
>  
>  	priv->buffer = devm_kzalloc(&hdev->dev, priv->buffer_size, GFP_KERNEL);
> -	if (!priv->buffer)
> -		return -ENOMEM;
> +	if (!priv->buffer) {
> +		ret = -ENOMEM;
> +		goto fail_and_close;
> +	}
>  
>  	mutex_init(&priv->mutex);
>