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authorKoen Vandeputte <koen.vandeputte@ncentric.com>2019-08-07 15:12:54 +0200
committerKoen Vandeputte <koen.vandeputte@ncentric.com>2019-08-27 10:32:44 +0200
commit19ed799bdcc20fab671c27fe335f3b1bb23fe78e (patch)
tree5e4d0de8a75320740db54912260f269e86af46dd /target/linux/ar71xx
parent4d40c0edd48938069c35fd5f4f1a3d24660357a7 (diff)
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ar71xx: ag71xx: make use of managed dev API simplifying code
Backport of a4eef43a120d ("ath79: ag71xx: replace alloc_etherdev with devm_alloc_etherdev") combined with the initial changes from John Crispin. Simplifies the code a lot by using the Managed dev API. Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Diffstat (limited to 'target/linux/ar71xx')
-rw-r--r--target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c85
1 files changed, 34 insertions, 51 deletions
diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
index 21337a79c9..9bf2a2db13 100644
--- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
+++ b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
@@ -1305,26 +1305,26 @@ static int ag71xx_probe(struct platform_device *pdev)
pdata = pdev->dev.platform_data;
if (!pdata) {
dev_err(&pdev->dev, "no platform data specified\n");
- err = -ENXIO;
- goto err_out;
+ return -ENXIO;
+
}
if (pdata->mii_bus_dev == NULL && pdata->phy_mask) {
dev_err(&pdev->dev, "no MII bus device specified\n");
- err = -EINVAL;
- goto err_out;
+ return -EINVAL;
}
- dev = alloc_etherdev(sizeof(*ag));
- if (!dev) {
- dev_err(&pdev->dev, "alloc_etherdev failed\n");
- err = -ENOMEM;
- goto err_out;
- }
+ dev = devm_alloc_etherdev(&pdev->dev, sizeof(*ag));
+ if (!dev)
+ return -ENOMEM;
if (!pdata->max_frame_len || !pdata->desc_pktlen_mask)
return -EINVAL;
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -EINVAL;
+
SET_NETDEV_DEV(dev, &pdev->dev);
ag = netdev_priv(dev);
@@ -1337,24 +1337,20 @@ static int ag71xx_probe(struct platform_device *pdev)
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mac_base");
if (!res) {
dev_err(&pdev->dev, "no mac_base resource found\n");
- err = -ENXIO;
- goto err_out;
+ return -ENXIO;
}
- ag->mac_base = ioremap_nocache(res->start, res->end - res->start + 1);
- if (!ag->mac_base) {
- dev_err(&pdev->dev, "unable to ioremap mac_base\n");
- err = -ENOMEM;
- goto err_free_dev;
- }
+ ag->mac_base = devm_ioremap_nocache(&pdev->dev, res->start,
+ res->end - res->start + 1);
+ if (!ag->mac_base)
+ return -ENOMEM;
dev->irq = platform_get_irq(pdev, 0);
- err = request_irq(dev->irq, ag71xx_interrupt,
- 0x0,
- dev->name, dev);
+ err = devm_request_irq(&pdev->dev, dev->irq, ag71xx_interrupt,
+ 0x0, dev_name(&pdev->dev), dev);
if (err) {
dev_err(&pdev->dev, "unable to request IRQ %d\n", dev->irq);
- goto err_unmap_base;
+ return err;
}
dev->base_addr = (unsigned long)ag->mac_base;
@@ -1379,11 +1375,12 @@ static int ag71xx_probe(struct platform_device *pdev)
}
ag->tx_ring.order = ag71xx_ring_size_order(tx_size);
- ag->stop_desc = dma_alloc_coherent(NULL,
- sizeof(struct ag71xx_desc), &ag->stop_desc_dma, GFP_KERNEL);
+ ag->stop_desc = dmam_alloc_coherent(&pdev->dev,
+ sizeof(struct ag71xx_desc),
+ &ag->stop_desc_dma, GFP_KERNEL);
if (!ag->stop_desc)
- goto err_free_irq;
+ return -ENOMEM;
ag->stop_desc->data = 0;
ag->stop_desc->ctrl = 0;
@@ -1403,7 +1400,7 @@ static int ag71xx_probe(struct platform_device *pdev)
err = ag71xx_phy_connect(ag);
if (err)
- goto err_free_desc;
+ return err;
err = ag71xx_debugfs_init(ag);
if (err)
@@ -1414,7 +1411,9 @@ static int ag71xx_probe(struct platform_device *pdev)
err = register_netdev(dev);
if (err) {
dev_err(&pdev->dev, "unable to register net device\n");
- goto err_debugfs_exit;
+ platform_set_drvdata(pdev, NULL);
+ ag71xx_debugfs_exit(ag);
+ goto err_phy_disconnect;
}
pr_info("%s: Atheros AG71xx at 0x%08lx, irq %d, mode:%s\n",
@@ -1423,40 +1422,24 @@ static int ag71xx_probe(struct platform_device *pdev)
return 0;
-err_debugfs_exit:
- ag71xx_debugfs_exit(ag);
err_phy_disconnect:
ag71xx_phy_disconnect(ag);
-err_free_desc:
- dma_free_coherent(NULL, sizeof(struct ag71xx_desc), ag->stop_desc,
- ag->stop_desc_dma);
-err_free_irq:
- free_irq(dev->irq, dev);
-err_unmap_base:
- iounmap(ag->mac_base);
-err_free_dev:
- kfree(dev);
-err_out:
- platform_set_drvdata(pdev, NULL);
return err;
}
static int ag71xx_remove(struct platform_device *pdev)
{
struct net_device *dev = platform_get_drvdata(pdev);
+ struct ag71xx *ag;
- if (dev) {
- struct ag71xx *ag = netdev_priv(dev);
-
- ag71xx_debugfs_exit(ag);
- ag71xx_phy_disconnect(ag);
- unregister_netdev(dev);
- free_irq(dev->irq, dev);
- iounmap(ag->mac_base);
- kfree(dev);
- platform_set_drvdata(pdev, NULL);
- }
+ if (!dev)
+ return 0;
+ ag = netdev_priv(dev);
+ ag71xx_debugfs_exit(ag);
+ ag71xx_phy_disconnect(ag);
+ unregister_netdev(dev);
+ platform_set_drvdata(pdev, NULL);
return 0;
}