[PATCH 4.19 23/65] usb: host: xhci-plat: add a shutdown

[Greg Kroah-Hartman]

From: Ran Wang <ran.wang_1@xxxxxxx>

commit b433e340e7565110b0ce9ca4b3e26f4b97a1decf upstream.

When loading new kernel via kexec, we need to shutdown host controller to
avoid any un-expected memory accessing during new kernel boot.

Signed-off-by: Ran Wang <ran.wang_1@xxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>
Tested-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
Reviewed-by: Peter Chen <peter.chen@xxxxxxx>
Link: https://lore.kernel.org/r/20200306092328.41253-1-ran.wang_1@xxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/usb/host/xhci-plat.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -443,6 +443,7 @@ MODULE_DEVICE_TABLE(acpi, usb_xhci_acpi_
 static struct platform_driver usb_xhci_driver = {
 	.probe	= xhci_plat_probe,
 	.remove	= xhci_plat_remove,
+	.shutdown = usb_hcd_platform_shutdown,
 	.driver	= {
 		.name = "xhci-hcd",
 		.pm = &xhci_plat_pm_ops,