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Subject[PATCH] rtc: r7301: Use devm_platform_ioremap_resource() in rtc7301_rtc_probe()
Date
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 21 Sep 2019 13:43:07 +0200

Simplify this function implementation by using a known wrapper function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
drivers/rtc/rtc-r7301.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/rtc/rtc-r7301.c b/drivers/rtc/rtc-r7301.c
index 2498278853af..aaf1b95e3990 100644
--- a/drivers/rtc/rtc-r7301.c
+++ b/drivers/rtc/rtc-r7301.c
@@ -354,21 +354,16 @@ static void rtc7301_init(struct rtc7301_priv *priv)

static int __init rtc7301_rtc_probe(struct platform_device *dev)
{
- struct resource *res;
void __iomem *regs;
struct rtc7301_priv *priv;
struct rtc_device *rtc;
int ret;

- res = platform_get_resource(dev, IORESOURCE_MEM, 0);
- if (!res)
- return -ENODEV;
-
priv = devm_kzalloc(&dev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;

- regs = devm_ioremap_resource(&dev->dev, res);
+ regs = devm_platform_ioremap_resource(dev, 0);
if (IS_ERR(regs))
return PTR_ERR(regs);

--
2.23.0
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