From 436f271996a1925e506d5004dcbf62bce24e5777 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sun, 29 Jul 2012 21:46:08 +0200 Subject: [PATCH] drivers/usb/host/ehci-grlib.c: use devm_ functions 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 Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-grlib.c | 18 +++--------------- 1 file changed, 3 insertions(+), 15 deletions(-) diff --git a/drivers/usb/host/ehci-grlib.c b/drivers/usb/host/ehci-grlib.c index 22ca45c079a4..3180cb3624d9 100644 --- a/drivers/usb/host/ehci-grlib.c +++ b/drivers/usb/host/ehci-grlib.c @@ -127,12 +127,6 @@ static int __devinit ehci_hcd_grlib_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 == NO_IRQ) { printk(KERN_ERR "%s: irq_of_parse_and_map failed\n", __FILE__); @@ -140,9 +134,9 @@ static int __devinit ehci_hcd_grlib_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; } @@ -161,17 +155,13 @@ static int __devinit ehci_hcd_grlib_probe(struct platform_device *op) rv = usb_add_hcd(hcd, irq, 0); if (rv) - goto err_ehci; + goto err_ioremap; return 0; -err_ehci: - iounmap(hcd->regs); err_ioremap: irq_dispose_mapping(irq); err_irq: - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); -err_rmr: usb_put_hcd(hcd); return rv; @@ -188,9 +178,7 @@ static int ehci_hcd_grlib_remove(struct platform_device *op) usb_remove_hcd(hcd); - iounmap(hcd->regs); irq_dispose_mapping(hcd->irq); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); -- 2.39.2