Until now, during the USB device enumeration when its PortState
USB_PORT_STAT_CONNECTION bit was not set, the stack was not informed
that the device is not present. Fix that by returning appropriate
error code.
Change-Id: I588f82b987993e9755f64ce76cde9eb690ef1d54
Signed-off-by: Marcin Wojtas <m...@semihalf.com>
---
MdeModulePkg/Bus/Usb/UsbBusDxe/UsbEnumer.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbEnumer.c
b/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbEnumer.c
index be9d9bd..ab1db15 100644
--- a/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbEnumer.c
+++ b/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbEnumer.c
@@ -719,6 +719,7 @@ UsbEnumerateNewDev (
if (!USB_BIT_IS_SET (PortState.PortStatus, USB_PORT_STAT_CONNECTION)) {
DEBUG ((EFI_D_ERROR, "UsbEnumerateNewDev: No device present at port %d\n",
Port));
+ Status = EFI_NOT_FOUND;
goto ON_ERROR;
} else if (USB_BIT_IS_SET (PortState.PortStatus, USB_PORT_STAT_SUPER_SPEED)){
Child->Speed = EFI_USB_SPEED_SUPER;
--
2.7.4
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