linux-kernel - Re: [PATCH] slimbus: core: use put

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Date:   Wed, 7 Mar 2018 10:45:50 +0000
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     Arvind Yadav <arvind.yadav.cs@...il.com>, broonie@...nel.org,
        gregkh@...uxfoundation.org
Cc:     linux-kernel@...r.kernel.org, alsa-devel@...a-project.org
Subject: Re: [PATCH] slimbus: core: use put_device() instead of kfree()



On 07/03/18 10:22, Arvind Yadav wrote:
> Never directly free @dev after calling device_register(), even
> if it returned an error! Always use put_device() to give up the
> reference initialized.
> 
> Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
> ---
>   drivers/slimbus/core.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
Looks good for me,

Will queue it up.

> diff --git a/drivers/slimbus/core.c b/drivers/slimbus/core.c
> index 4988a8f..7ddfc67 100644
> --- a/drivers/slimbus/core.c
> +++ b/drivers/slimbus/core.c
> @@ -141,7 +141,7 @@ static struct slim_device *slim_alloc_device(struct slim_controller *ctrl,
>   	sbdev->e_addr = *eaddr;
>   	ret = slim_add_device(ctrl, sbdev, node);
>   	if (ret) {
> -		kfree(sbdev);
> +		put_device(&sbdev->dev);
>   		return NULL;
>   	}
>   
> 

thanks,
srini