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net: ibm: emac: tah: devm_platform_get_resources

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Simplifies the probe function by a bit and allows removing the _remove
function such that devm now handles all cleanup.

printk gets converted to dev_err as np is now gone.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://patch.msgid.link/20241030203727.6039-4-rosenp@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Rosen Penev
2024-10-30 13:37:18 -07:00
committed by Jakub Kicinski
parent 18082a84a7
commit 9f3ea8d70d
1 changed files with 4 additions and 22 deletions
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26
drivers/net/ethernet/ibm/emac/tah.c
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@@ -87,9 +87,7 @@ void *tah_dump_regs(struct platform_device *ofdev, void *buf)
static int tah_probe(struct platform_device *ofdev)
{
struct device_node *np = ofdev->dev.of_node;
struct tah_instance *dev;
struct resource regs;
int err;
dev = devm_kzalloc(&ofdev->dev, sizeof(struct tah_instance),
@@ -103,16 +101,10 @@ static int tah_probe(struct platform_device *ofdev)
dev->ofdev = ofdev;
if (of_address_to_resource(np, 0, &regs)) {
printk(KERN_ERR "%pOF: Can't get registers address\n", np);
return -ENXIO;
}
dev->base = (struct tah_regs __iomem *)ioremap(regs.start,
sizeof(struct tah_regs));
if (dev->base == NULL) {
printk(KERN_ERR "%pOF: Can't map device registers!\n", np);
return -ENOMEM;
dev->base = devm_platform_ioremap_resource(ofdev, 0);
if (IS_ERR(dev->base)) {
dev_err(&ofdev->dev, "can't map device registers");
return PTR_ERR(dev->base);
}
platform_set_drvdata(ofdev, dev);
@@ -126,15 +118,6 @@ static int tah_probe(struct platform_device *ofdev)
return 0;
}
static void tah_remove(struct platform_device *ofdev)
{
struct tah_instance *dev = platform_get_drvdata(ofdev);
WARN_ON(dev->users != 0);
iounmap(dev->base);
}
static const struct of_device_id tah_match[] =
{
{
@@ -153,7 +136,6 @@ static struct platform_driver tah_driver = {
.of_match_table = tah_match,
},
.probe = tah_probe,
.remove = tah_remove,
};
int __init tah_init(void)