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net: davinci_mdio: simplify IO memory mapping 

Simplify IO memory mapping by using devm_ioremap_resource()
which will do all errors handling and reporting for us.

Acked-and-tested-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Grygorii Strashko 2014-04-30 15:23:36 +03:00 committed by David S. Miller
parent 4e8b4c802c
commit 9728e1a7d3
1 changed files with 3 additions and 18 deletions
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21
drivers/net/ethernet/ti/davinci_mdio.c
View File

@ -363,24 +363,9 @@ static int davinci_mdio_probe(struct platform_device *pdev)
spin_lock_init(&data->lock);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(dev, "could not find register map resource\n");
ret = -ENOENT;
goto bail_out;
}
res = devm_request_mem_region(dev, res->start, resource_size(res),
dev_name(dev));
if (!res) {
dev_err(dev, "could not allocate register map resource\n");
ret = -ENXIO;
goto bail_out;
}
data->regs = devm_ioremap_nocache(dev, res->start, resource_size(res));
if (!data->regs) {
dev_err(dev, "could not map mdio registers\n");
ret = -ENOMEM;
data->regs = devm_ioremap_resource(dev, res);
if (IS_ERR(data->regs)) {
ret = PTR_ERR(data->regs);
goto bail_out;
}