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usb: ehci-s5p: Use devm for requesting ehci_vbus_gpio

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The ehci_vbus_gpio is requested but never freed.  This can cause
problems with deferred probes and would cause problems if
s5p_ehci_remove was ever called.  Use devm to fix this.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Tested-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Doug Anderson 2013-03-14 20:15:37 -07:00 committed by Greg Kroah-Hartman
parent 24b90814fb
commit 3f3b55bf78
1 changed files with 6 additions and 5 deletions
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11
drivers/usb/host/ehci-s5p.c
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@ -92,20 +92,21 @@ static void s5p_ehci_phy_disable(struct s5p_ehci_hcd *s5p_ehci)
static void s5p_setup_vbus_gpio(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
int err;
int gpio;
if (!pdev->dev.of_node)
if (!dev->of_node)
return;
gpio = of_get_named_gpio(pdev->dev.of_node,
"samsung,vbus-gpio", 0);
gpio = of_get_named_gpio(dev->of_node, "samsung,vbus-gpio", 0);
if (!gpio_is_valid(gpio))
return;
err = gpio_request_one(gpio, GPIOF_OUT_INIT_HIGH, "ehci_vbus_gpio");
err = devm_gpio_request_one(dev, gpio, GPIOF_OUT_INIT_HIGH,
"ehci_vbus_gpio");
if (err)
dev_err(&pdev->dev, "can't request ehci vbus gpio %d", gpio);
dev_err(dev, "can't request ehci vbus gpio %d", gpio);
}
static u64 ehci_s5p_dma_mask = DMA_BIT_MASK(32);