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watchdog: sunxi_wdt: 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.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
Corentin Labbe 2017-10-21 19:45:13 +02:00 committed by Wim Van Sebroeck
parent b6c84c9ff3
commit e531037145
1 changed files with 2 additions and 5 deletions
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7
drivers/watchdog/sunxi_wdt.c
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@ -234,7 +234,6 @@ MODULE_DEVICE_TABLE(of, sunxi_wdt_dt_ids);
static int sunxi_wdt_probe(struct platform_device *pdev)
{
struct sunxi_wdt_dev *sunxi_wdt;
const struct of_device_id *device;
struct resource *res;
int err;
@ -242,12 +241,10 @@ static int sunxi_wdt_probe(struct platform_device *pdev)
if (!sunxi_wdt)
return -EINVAL;
device = of_match_device(sunxi_wdt_dt_ids, &pdev->dev);
if (!device)
sunxi_wdt->wdt_regs = of_device_get_match_data(&pdev->dev);
if (!sunxi_wdt->wdt_regs)
return -ENODEV;
sunxi_wdt->wdt_regs = device->data;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
sunxi_wdt->wdt_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(sunxi_wdt->wdt_base))