diff options
| -rw-r--r-- | MdeModulePkg/Bus/Usb/UsbBusDxe/UsbDesc.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbDesc.c b/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbDesc.c index 35cdaf5527..1713e3c421 100644 --- a/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbDesc.c +++ b/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbDesc.c @@ -786,10 +786,13 @@ UsbBuildDescTable ( return Status;
}
- DevDesc = UsbDev->DevDesc;
- NumConfig = DevDesc->Desc.NumConfigurations;
- DevDesc->Configs = AllocateZeroPool (NumConfig * sizeof (USB_CONFIG_DESC *));
+ DevDesc = UsbDev->DevDesc;
+ NumConfig = DevDesc->Desc.NumConfigurations;
+ if (NumConfig == 0) {
+ return EFI_DEVICE_ERROR;
+ }
+ DevDesc->Configs = AllocateZeroPool (NumConfig * sizeof (USB_CONFIG_DESC *));
if (DevDesc->Configs == NULL) {
return EFI_OUT_OF_RESOURCES;
}
|