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dmaengine: ep93xx: Use struct_size()

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Use struct_size() instead of hand-writing it, when allocating a structure
with a flex array.

This is less verbose, more robust and more informative.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/36fa11d95b448b5f3f1677da41fe35b9e2751427.1690041500.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Christophe JAILLET 2023-07-22 17:58:40 +02:00 committed by Vinod Koul
parent 897500c7ea
commit 926a4b17e9
1 changed files with 1 additions and 3 deletions
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4
drivers/dma/ep93xx_dma.c
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@ -1320,11 +1320,9 @@ static int __init ep93xx_dma_probe(struct platform_device *pdev)
struct ep93xx_dma_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct ep93xx_dma_engine *edma;
struct dma_device *dma_dev;
size_t edma_size;
int ret, i;
edma_size = pdata->num_channels * sizeof(struct ep93xx_dma_chan);
edma = kzalloc(sizeof(*edma) + edma_size, GFP_KERNEL);
edma = kzalloc(struct_size(edma, channels, pdata->num_channels), GFP_KERNEL);
if (!edma)
return -ENOMEM;