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usb: isp1760: Use the managed devm_ioremap_resource() API

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This simplifies error and remove code paths.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Laurent Pinchart 2015-01-21 00:55:52 +02:00 • committed by Felipe Balbi
parent 4942e00e55
commit 10feee1446
2 changed files with 16 additions and 41 deletions
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37
drivers/usb/host/isp1760-if.c
View file

@ -85,8 +85,9 @@ static int isp1761_pci_probe(struct pci_dev *dev,
chip_addr = ioremap_nocache(pci_mem_phy0,memlength);
if (!chip_addr) {
printk(KERN_ERR "Error ioremap failed\n");
release_mem_region(pci_mem_phy0, memlength);
ret_status = -ENOMEM;
goto cleanup3;
goto cleanup2;
}
/* bad pci latencies can contribute to overruns */
@ -114,6 +115,7 @@ static int isp1761_pci_probe(struct pci_dev *dev,
}
iounmap(chip_addr);
release_mem_region(pci_mem_phy0, memlength);
/* Host Controller presence is detected by writing to scratch register
* and reading back and checking the contents are same or not
@ -121,7 +123,7 @@ static int isp1761_pci_probe(struct pci_dev *dev,
if (reg_data != 0xFACE) {
dev_err(&dev->dev, "scratch register mismatch %x\n", reg_data);
ret_status = -ENOMEM;
goto cleanup3;
goto cleanup2;
}
pci_set_master(dev);
@ -132,20 +134,14 @@ static int isp1761_pci_probe(struct pci_dev *dev,
reg_data |= 0x900;
writel(reg_data, iobase + PLX_INT_CSR_REG);
dev->dev.dma_mask = NULL;
ret_status = isp1760_register(&dev->resource[3], dev->irq, IRQF_SHARED,
&dev->dev, devflags);
if (ret_status < 0)
goto cleanup3;
/* done with PLX IO access */
iounmap(iobase);
release_mem_region(nxp_pci_io_base, iolength);
return 0;
dev->dev.dma_mask = NULL;
return isp1760_register(&dev->resource[3], dev->irq, IRQF_SHARED,
&dev->dev, devflags);
cleanup3:
release_mem_region(pci_mem_phy0, memlength);
cleanup2:
iounmap(iobase);
cleanup1:
@ -193,25 +189,14 @@ static int isp1760_plat_probe(struct platform_device *pdev)
unsigned int devflags = 0;
struct resource *mem_res;
struct resource *irq_res;
resource_size_t mem_size;
int ret;
mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!mem_res) {
pr_warning("isp1760: Memory resource not available\n");
return -ENODEV;
}
mem_size = resource_size(mem_res);
if (!request_mem_region(mem_res->start, mem_size, "isp1760")) {
pr_warning("isp1760: Cannot reserve the memory resource\n");
return -EBUSY;
}
irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!irq_res) {
pr_warning("isp1760: IRQ resource not available\n");
ret = -ENODEV;
goto cleanup;
return -ENODEV;
}
irqflags |= irq_res->flags & IRQF_TRIGGER_MASK;
@ -260,14 +245,10 @@ static int isp1760_plat_probe(struct platform_device *pdev)
ret = isp1760_register(mem_res, irq_res->start, irqflags, &pdev->dev,
devflags);
if (ret < 0)
goto cleanup;
return ret;
pr_info("ISP1760 USB device initialised\n");
return 0;
cleanup:
release_mem_region(mem_res->start, mem_size);
return ret;
}
static int isp1760_plat_remove(struct platform_device *pdev)