linux-kernel - Re: [PATCH v16 2/4] dmaengine: tegra: Add tegra gpcdma driver

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Message-ID: <16c73e83-b990-7d8e-ddfd-7cbbe7e407ea@gmail.com>
Date:   Fri, 14 Jan 2022 14:57:32 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Akhil R <akhilrajeev@...dia.com>, dan.j.williams@...el.com,
        devicetree@...r.kernel.org, dmaengine@...r.kernel.org,
        jonathanh@...dia.com, kyarlagadda@...dia.com, ldewangan@...dia.com,
        linux-kernel@...r.kernel.org, linux-tegra@...r.kernel.org,
        p.zabel@...gutronix.de, rgumasta@...dia.com, robh+dt@...nel.org,
        thierry.reding@...il.com, vkoul@...nel.org
Cc:     Pavan Kunapuli <pkunapuli@...dia.com>
Subject: Re: [PATCH v16 2/4] dmaengine: tegra: Add tegra gpcdma driver

10.01.2022 19:05, Akhil R пишет:
> +static int tegra_dma_terminate_all(struct dma_chan *dc)
> +{
> +	struct tegra_dma_channel *tdc = to_tegra_dma_chan(dc);
> +	unsigned long flags;
> +	LIST_HEAD(head);
> +	int err;
> +
> +	if (tdc->dma_desc) {

Needs locking protection against racing with the interrupt handler.