dmaengine: mcf-edma: Use struct_size()
Use struct_size() instead of hand writing it. This is less verbose and more informative. 'mcf_chan' is now unused and can be removed. In fact, it is shadowed by another variable in the 'for' loop below. Keep this one. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/97c2bb1c9b69d0739da3762a7752ae6582c4ad02.1683390112.git.christophe.jaillet@wanadoo.fr Signed-off-by: Vinod Koul <vkoul@kernel.org>
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@ -180,9 +180,8 @@ static int mcf_edma_probe(struct platform_device *pdev)
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{
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struct mcf_edma_platform_data *pdata;
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struct fsl_edma_engine *mcf_edma;
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struct fsl_edma_chan *mcf_chan;
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struct edma_regs *regs;
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int ret, i, len, chans;
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int ret, i, chans;
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pdata = dev_get_platdata(&pdev->dev);
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if (!pdata) {
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@ -191,8 +190,8 @@ static int mcf_edma_probe(struct platform_device *pdev)
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}
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chans = pdata->dma_channels;
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len = sizeof(*mcf_edma) + sizeof(*mcf_chan) * chans;
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mcf_edma = devm_kzalloc(&pdev->dev, len, GFP_KERNEL);
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mcf_edma = devm_kzalloc(&pdev->dev, struct_size(mcf_edma, chans, chans),
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GFP_KERNEL);
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if (!mcf_edma)
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return -ENOMEM;
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