[PATCH 25/29] drivers/spi/spi-sirf.c: simplify use of devm_ioremap_resource

Julia Lawall
2013-08-14T09:11:29Z

Move the call to platform_get_resource adjacent to the call to
devm_ioremap_resource to make the connection between them more clear.

A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
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);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
drivers/spi/spi-sirf.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/spi/spi-sirf.c b/drivers/spi/spi-sirf.c
index 62c92c3..546fae2 100644
--- a/drivers/spi/spi-sirf.c
+++ b/drivers/spi/spi-sirf.c
@@ -588,12 +588,6 @@ static int spi_sirfsoc_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, master);
sspi = spi_master_get_devdata(master);

- mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!mem_res) {
- dev_err(&pdev->dev, "Unable to get IO resource\n");
- ret = -ENODEV;
- goto free_master;
- }
master->num_chipselect = num_cs;

for (i = 0; i < master->num_chipselect; i++) {
@@ -620,6 +614,7 @@ static int spi_sirfsoc_probe(struct platform_device *pdev)
}
}

+ mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
sspi->base = devm_ioremap_resource(&pdev->dev, mem_res);
if (IS_ERR(sspi->base)) {
ret = PTR_ERR(sspi->base);