sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

MdeModulePkg/UsbBusDxe: Return error when the device is not present

Browse Source 
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.

Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
This commit is contained in:
Marcin Wojtas
2019-07-31 14:25:19 +08:00
committed by Matt DeVillier
parent 4ba839c5c8
commit a03327088a
1 changed files with 1 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
MdeModulePkg/Bus/Usb/UsbBusDxe/UsbEnumer.c
View File

@ -725,6 +725,7 @@ 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;