diff options
| author | Julia Lawall <Julia.Lawall@lip6.fr> | 2012-07-29 21:46:10 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-10 12:01:33 -0700 |
| commit | 84b79838b9bcf7a9c2c09f4de930b8d476f1e70b (patch) | |
| tree | 07cfdb7c28037b891d891f66768255af8e3fda14 /drivers/usb/host/ehci-ls1x.c | |
| parent | 1feda3ed2e5b5968c8393c0e7fe2c27a06a0f4f7 (diff) | |
| download | linux-next-84b79838b9bcf7a9c2c09f4de930b8d476f1e70b.tar.gz | |
drivers/usb/host/ehci-ls1x.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 <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/ehci-ls1x.c')
| -rw-r--r-- | drivers/usb/host/ehci-ls1x.c | 18 |
1 files changed, 3 insertions, 15 deletions
diff --git a/drivers/usb/host/ehci-ls1x.c b/drivers/usb/host/ehci-ls1x.c index a283e59709d6..aa0f328922df 100644 --- a/drivers/usb/host/ehci-ls1x.c +++ b/drivers/usb/host/ehci-ls1x.c @@ -106,29 +106,19 @@ static int ehci_hcd_ls1x_probe(struct platform_device *pdev) hcd->rsrc_start = res->start; hcd->rsrc_len = resource_size(res); - if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { - dev_dbg(&pdev->dev, "controller already in use\n"); - ret = -EBUSY; - goto err_put_hcd; - } - - hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); + hcd->regs = devm_request_and_ioremap(&pdev->dev, res); if (hcd->regs == NULL) { dev_dbg(&pdev->dev, "error mapping memory\n"); ret = -EFAULT; - goto err_release_region; + goto err_put_hcd; } ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED); if (ret) - goto err_iounmap; + goto err_put_hcd; return ret; -err_iounmap: - iounmap(hcd->regs); -err_release_region: - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); err_put_hcd: usb_put_hcd(hcd); return ret; @@ -139,8 +129,6 @@ static int ehci_hcd_ls1x_remove(struct platform_device *pdev) struct usb_hcd *hcd = platform_get_drvdata(pdev); usb_remove_hcd(hcd); - iounmap(hcd->regs); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); return 0; |