On 04.03.2016 18:19, Thierry Reding wrote:
From: Thierry Reding <treding@xxxxxxxxxx> Add support for the on-chip XUSB controller present on Tegra SoCs. This controller, when loaded with external firmware, exposes an interface compliant with xHCI. This driver loads the firmware, starts the controller, and is able to service host-specific messages sent by the controller's firmware. The controller also supports USB device mode as well as powergating of the SuperSpeed and host-controller logic when not in use, but support for these is not yet implemented. Based on work by: Ajay Gupta <ajayg@xxxxxxxxxx> Bharath Yadav <byadav@xxxxxxxxxx> Andrew Bresticker <abrestic@xxxxxxxxxxxx> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Cc: Mathias Nyman <mathias.nyman@xxxxxxxxx> Signed-off-by: Thierry Reding <treding@xxxxxxxxxx> ---
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+static int tegra_xusb_remove(struct platform_device *pdev) +{ + struct tegra_xusb *tegra = platform_get_drvdata(pdev);
> + struct usb_hcd *hcd = tegra->hcd;
+ struct xhci_hcd *xhci; + + if (tegra->fw_loaded) { + xhci = hcd_to_xhci(hcd); + usb_remove_hcd(xhci->shared_hcd); + usb_put_hcd(xhci->shared_hcd); + usb_remove_hcd(hcd); + tegra_xusb_padctl_put(tegra->padctl); + usb_put_hcd(hcd); + kfree(xhci);
Don't free xhci here, xhci is a part of hcd (hcd_priv) and hcd is already freed in usb_put_hcd() Other than that I can't see any issues -Mathias -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html