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dmaengine: sun6i: use of_device_get_match_data

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The usage of of_device_get_match_data reduce the code size a bit.
Furthermore, it prevents an improbable dereference when
of_match_device() return NULL.

Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Corentin Labbe 2017-09-20 09:24:02 +02:00 committed by Vinod Koul
parent 2bd6bf03f4
commit 8f3b00347b
1 changed files with 2 additions and 4 deletions
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6
drivers/dma/sun6i-dma.c
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@ -1064,7 +1064,6 @@ MODULE_DEVICE_TABLE(of, sun6i_dma_match);
static int sun6i_dma_probe(struct platform_device *pdev)
{
const struct of_device_id *device;
struct sun6i_dma_dev *sdc;
struct resource *res;
int ret, i;
@ -1073,10 +1072,9 @@ static int sun6i_dma_probe(struct platform_device *pdev)
if (!sdc)
return -ENOMEM;
device = of_match_device(sun6i_dma_match, &pdev->dev);
if (!device)
sdc->cfg = of_device_get_match_data(&pdev->dev);
if (!sdc->cfg)
return -ENODEV;
sdc->cfg = device->data;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
sdc->base = devm_ioremap_resource(&pdev->dev, res);