struct exynos3830_usb_phy { struct usb_phy *phy; };

A very specific and technical topic!

usb_phy = platform_get_drvdata(pdev); if (usb_phy) { usb_deregister_dev(pdev); usb_phy_put(usb_phy->phy); kfree(usb_phy); }

static int exynos3830_usb_probe(struct platform_device *pdev) { struct exynos3830_usb_phy *usb_phy; int ret;

platform_set_drvdata(pdev, usb_phy);

static int exynos3830_usb_disconnect(struct platform_device *pdev) { struct exynos3830_usb_phy *usb_phy;