[PATCH 1/2] mcb: Replace ioremap and request_region with the devm version
From: Andreas Werner
Date: Wed Apr 20 2016 - 09:18:12 EST
Replaced ioremap with devm_ioremap and request_mem_region with
devm_request_mem_region. This makes the code much more cleaner.
Signed-off-by: Andreas Werner <andreas.werner@xxxxxx>
---
drivers/mcb/mcb-pci.c | 19 +++++++------------
1 file changed, 7 insertions(+), 12 deletions(-)
diff --git a/drivers/mcb/mcb-pci.c b/drivers/mcb/mcb-pci.c
index 67d5e7d..99dd9db 100644
--- a/drivers/mcb/mcb-pci.c
+++ b/drivers/mcb/mcb-pci.c
@@ -55,19 +55,20 @@ static int mcb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
goto out_disable;
}
- res = request_mem_region(priv->mapbase, CHAM_HEADER_SIZE,
- KBUILD_MODNAME);
+ res = devm_request_mem_region(&pdev->dev, priv->mapbase,
+ CHAM_HEADER_SIZE,
+ KBUILD_MODNAME);
if (!res) {
dev_err(&pdev->dev, "Failed to request PCI memory\n");
ret = -EBUSY;
goto out_disable;
}
- priv->base = ioremap(priv->mapbase, CHAM_HEADER_SIZE);
+ priv->base = devm_ioremap(&pdev->dev, priv->mapbase, CHAM_HEADER_SIZE);
if (!priv->base) {
dev_err(&pdev->dev, "Cannot ioremap\n");
ret = -ENOMEM;
- goto out_release;
+ goto out_disable;
}
flags = pci_resource_flags(pdev, 0);
@@ -75,7 +76,7 @@ static int mcb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
ret = -ENOTSUPP;
dev_err(&pdev->dev,
"IO mapped PCI devices are not supported\n");
- goto out_iounmap;
+ goto out_disable;
}
pci_set_drvdata(pdev, priv);
@@ -83,7 +84,7 @@ static int mcb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
priv->bus = mcb_alloc_bus(&pdev->dev);
if (IS_ERR(priv->bus)) {
ret = PTR_ERR(priv->bus);
- goto out_iounmap;
+ goto out_disable;
}
priv->bus->get_irq = mcb_pci_get_irq;
@@ -101,10 +102,6 @@ static int mcb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
out_mcb_bus:
mcb_release_bus(priv->bus);
-out_iounmap:
- iounmap(priv->base);
-out_release:
- pci_release_region(pdev, 0);
out_disable:
pci_disable_device(pdev);
return ret;
@@ -116,8 +113,6 @@ static void mcb_pci_remove(struct pci_dev *pdev)
mcb_release_bus(priv->bus);
- iounmap(priv->base);
- release_region(priv->mapbase, CHAM_HEADER_SIZE);
pci_disable_device(pdev);
}
--
2.6.2