linux-kernel - Re: [PATCH 1/5] interconnect: qcom: sdm845: Walk the list safely on node removal

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Date:   Thu, 28 Nov 2019 10:14:38 -0800
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Georgi Djakov <georgi.djakov@...aro.org>
Cc:     linux-pm@...r.kernel.org, agross@...nel.org, digetx@...il.com,
        evgreen@...omium.org, daidavid1@...eaurora.org,
        masneyb@...tation.org, sibis@...eaurora.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH 1/5] interconnect: qcom: sdm845: Walk the list safely on
 node removal

On Thu 28 Nov 05:34 PST 2019, Georgi Djakov wrote:

> As we will remove items off the list using list_del(), we need to use the
> safe version of list_for_each_entry().
> 
> Fixes: b5d2f741077a ("interconnect: qcom: Add sdm845 interconnect provider driver")
> Reported-by: Dmitry Osipenko <digetx@...il.com>
> Signed-off-by: Georgi Djakov <georgi.djakov@...aro.org>
> ---
>  drivers/interconnect/qcom/sdm845.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/interconnect/qcom/sdm845.c b/drivers/interconnect/qcom/sdm845.c
> index 502a6c22b41e..924c2d056d85 100644
> --- a/drivers/interconnect/qcom/sdm845.c
> +++ b/drivers/interconnect/qcom/sdm845.c
> @@ -870,7 +870,7 @@ static int qnoc_remove(struct platform_device *pdev)
>  	struct icc_provider *provider = &qp->provider;
>  	struct icc_node *n;
>  
> -	list_for_each_entry(n, &provider->nodes, node_list) {
> +	list_for_each_entry_safe(n, &provider->nodes, node_list) {

This now takes 4 parameters, please update (same issue in next patch).

Regards,
Bjorn

>  		icc_node_del(n);
>  		icc_node_destroy(n->id);
>  	}