linux-kernel - Re: [Patch v5 1/2] dmaengine: add Qualcomm BAM dma driver

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Date:	Tue, 04 Feb 2014 13:17:28 -0800
From:	Joe Perches <joe@...ches.com>
To:	Andy Gross <agross@...eaurora.org>
Cc:	Vinod Koul <vinod.koul@...el.com>,
	Dan Williams <dan.j.williams@...el.com>,
	dmaengine@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-arm-msm@...r.kernel.org
Subject: Re: [Patch v5 1/2] dmaengine: add Qualcomm BAM dma driver

On Tue, 2014-02-04 at 14:42 -0600, Andy Gross wrote:
> Add the DMA engine driver for the QCOM Bus Access Manager (BAM) DMA controller
> found in the MSM 8x74 platforms.

trivia: fixable later.

> diff --git a/drivers/dma/qcom_bam_dma.c b/drivers/dma/qcom_bam_dma.c
[]
> +	/* allocate enough room to accomodate the number of entries */
> +	async_desc = kzalloc(sizeof(*async_desc) +
> +			(sg_len * sizeof(struct bam_desc_hw)), GFP_NOWAIT);
> +
> +	if (!async_desc) {
> +		dev_err(bdev->dev, "failed to allocate async descriptor\n");

Unnecessary OOM message as generic alloc has an
OOM message with a dump_stack();

> +static int bam_dma_probe(struct platform_device *pdev)
> +{
[]
> +	ret = clk_prepare_enable(bdev->bamclk);
> +	if (ret) {
> +		dev_err(bdev->dev, "failed to prepare/enable clock");

Missing terminating \n newline


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