Re: [PATCH 2/2] rpmsg: glink: Fix memory leak in qcom_glink_alloc_intent()

[Sricharan R <sricharan@codeaurora.org>]

Hi,

On 9/8/2017 4:04 PM, Dan Carpenter wrote:
> We need to free "intent" and "intent->data" on a couple error paths.
> 
> Fixes: 933b45da5d1d ("rpmsg: glink: Add support for TX intents")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> 
> diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
> index fecb1dafa8f3..5dcc9bf1c5bc 100644
> --- a/drivers/rpmsg/qcom_glink_native.c
> +++ b/drivers/rpmsg/qcom_glink_native.c
> @@ -635,19 +635,18 @@ qcom_glink_alloc_intent(struct qcom_glink *glink,
>  	unsigned long flags;
>  
>  	intent = kzalloc(sizeof(*intent), GFP_KERNEL);
> -
>  	if (!intent)
>  		return NULL;
>  
>  	intent->data = kzalloc(size, GFP_KERNEL);
>  	if (!intent->data)
> -		return NULL;
> +		goto free_intent;
>  
>  	spin_lock_irqsave(&channel->intent_lock, flags);
>  	ret = idr_alloc_cyclic(&channel->liids, intent, 1, -1, GFP_ATOMIC);
>  	if (ret < 0) {
>  		spin_unlock_irqrestore(&channel->intent_lock, flags);
> -		return NULL;
> +		goto free_data;
>  	}
>  	spin_unlock_irqrestore(&channel->intent_lock, flags);
>  
> @@ -656,6 +655,12 @@ qcom_glink_alloc_intent(struct qcom_glink *glink,
>  	intent->reuse = reuseable;
>  
>  	return intent;
> +
> +free_data:
> +	kfree(intent->data);
> +free_intent:
> +	kfree(intent);
> +	return NULL;

Acked-by: Sricharan R <sricharan@codeaurora.org>

Regards,
 Sricharan

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