From: Julia Lawall <[email protected]> The various devm_ functions allocate memory that is released when a driver detaches. This patch uses these functions for data that is allocated in the probe function of a platform device and is only freed in the remove function.
Signed-off-by: Julia Lawall <[email protected]> --- Not compiled drivers/usb/host/ehci-xilinx-of.c | 20 +++----------------- 1 file changed, 3 insertions(+), 17 deletions(-) diff --git a/drivers/usb/host/ehci-xilinx-of.c b/drivers/usb/host/ehci-xilinx-of.c index 39f24fa..6a3f921 100644 --- a/drivers/usb/host/ehci-xilinx-of.c +++ b/drivers/usb/host/ehci-xilinx-of.c @@ -152,12 +152,6 @@ static int __devinit ehci_hcd_xilinx_of_probe(struct platform_device *op) hcd->rsrc_start = res.start; hcd->rsrc_len = resource_size(&res); - if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { - printk(KERN_ERR "%s: request_mem_region failed\n", __FILE__); - rv = -EBUSY; - goto err_rmr; - } - irq = irq_of_parse_and_map(dn, 0); if (!irq) { printk(KERN_ERR "%s: irq_of_parse_and_map failed\n", __FILE__); @@ -165,11 +159,11 @@ static int __devinit ehci_hcd_xilinx_of_probe(struct platform_device *op) goto err_irq; } - hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); + hcd->regs = devm_request_and_ioremap(&op->dev, &res); if (!hcd->regs) { - printk(KERN_ERR "%s: ioremap failed\n", __FILE__); + pr_err("%s: devm_request_and_ioremap failed\n", __FILE__); rv = -ENOMEM; - goto err_ioremap; + goto err_irq; } ehci = hcd_to_ehci(hcd); @@ -200,12 +194,7 @@ static int __devinit ehci_hcd_xilinx_of_probe(struct platform_device *op) if (rv == 0) return 0; - iounmap(hcd->regs); - -err_ioremap: err_irq: - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); -err_rmr: usb_put_hcd(hcd); return rv; @@ -227,9 +216,6 @@ static int ehci_hcd_xilinx_of_remove(struct platform_device *op) usb_remove_hcd(hcd); - iounmap(hcd->regs); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); - usb_put_hcd(hcd); return 0; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
