ASoC: Atmel: ClassD: Simplify use of devm_ioremap_resource

Author: Amitoj Kaur Chawla <amitoj1606@gmail.com>

Remove unneeded error handling on the result of a call to
platform_get_resource when the value is passed to
devm_ioremap_resource.

The Coccinelle semantic patch that makes this change is as follows:

// 
@@
expression pdev,res,n,e,e1;
expression ret != 0;
identifier l;
@@

- res = platform_get_resource(pdev, IORESOURCE_MEM, n);
  ... when != res
- if (res == NULL) { ... \(goto l;\|return ret;\) }
  ... when != res
+ res = platform_get_resource(pdev, IORESOURCE_MEM, n);
  e = devm_ioremap_resource(e1, res);
// 

Signed-off-by: Amitoj Kaur Chawla 
Signed-off-by: Mark Brown 

---
 sound/soc/atmel/atmel-classd.c | 5 -----
 1 file changed, 5 deletions(-)
 
diff --git a/sound/soc/atmel/atmel-classd.c b/sound/soc/atmel/atmel-classd.c
index 6107de9..6d9b8b4 100644
--- a/sound/soc/atmel/atmel-classd.c
+++ b/sound/soc/atmel/atmel-classd.c
@@ -593,11 +593,6 @@ static int atmel_classd_probe(struct platform_device *pdev)
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(dev, "no memory resource\n");
-		return -ENXIO;
-	}
-
 	io_base = devm_ioremap_resource(dev, res);
 	if (IS_ERR(io_base)) {
 		ret =  PTR_ERR(io_base);