diff options
| author | Julia Lawall <Julia.Lawall@lip6.fr> | 2012-07-29 21:46:09 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-10 12:01:33 -0700 |
| commit | 1feda3ed2e5b5968c8393c0e7fe2c27a06a0f4f7 (patch) | |
| tree | 5d9605a4329782721de3e3178c08d385cefb37a2 /drivers/usb/host/ehci-ixp4xx.c | |
| parent | 436f271996a1925e506d5004dcbf62bce24e5777 (diff) | |
drivers/usb/host/ehci-ixp4xx.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-ixp4xx.c')
| -rw-r--r-- | drivers/usb/host/ehci-ixp4xx.c | 19 |
1 files changed, 3 insertions, 16 deletions
diff --git a/drivers/usb/host/ehci-ixp4xx.c b/drivers/usb/host/ehci-ixp4xx.c index 488d401942e9..f224c0a48bed 100644 --- a/drivers/usb/host/ehci-ixp4xx.c +++ b/drivers/usb/host/ehci-ixp4xx.c @@ -98,30 +98,19 @@ static int ixp4xx_ehci_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, - driver->description)) { - dev_dbg(&pdev->dev, "controller already in use\n"); - retval = -EBUSY; - goto fail_request_resource; - } - - hcd->regs = ioremap_nocache(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"); retval = -EFAULT; - goto fail_ioremap; + goto fail_request_resource; } retval = usb_add_hcd(hcd, irq, IRQF_SHARED); if (retval) - goto fail_add_hcd; + goto fail_request_resource; return retval; -fail_add_hcd: - iounmap(hcd->regs); -fail_ioremap: - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); fail_request_resource: usb_put_hcd(hcd); fail_create_hcd: @@ -134,8 +123,6 @@ static int ixp4xx_ehci_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; |