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[USBHUB_NEW] Support NULL HubExtension in USBH_PdoRemoveDevice.

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Device removal can happen multiple times for PDOs.
This commit is contained in:
Thomas Faber 2019-03-04 20:36:32 +01:00
parent 477cf902e4
commit a7634b8e1d
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GPG key ID: 076E7C3D44720826
1 changed files with 13 additions and 7 deletions
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20
drivers/usb/usbhub_new/pnp.c
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@ -2193,9 +2193,8 @@ USBH_PdoRemoveDevice(IN PUSBHUB_PORT_PDO_EXTENSION PortExtension,
Port = PortExtension->PortNumber;
ASSERT(Port > 0);
ASSERT(HubExtension);
if (HubExtension->CurrentPowerState.DeviceState != PowerDeviceD0 &&
if (HubExtension &&
HubExtension->CurrentPowerState.DeviceState != PowerDeviceD0 &&
(HubExtension->HubFlags & USBHUB_FDO_FLAG_DEVICE_STARTED) != 0)
{
USBH_HubSetD0(HubExtension);
@ -2231,6 +2230,7 @@ USBH_PdoRemoveDevice(IN PUSBHUB_PORT_PDO_EXTENSION PortExtension,
{
WakeIrp = NULL;
ASSERT(HubExtension);
if (!InterlockedDecrement(&HubExtension->PendingRequestCount))
{
KeSetEvent(&HubExtension->PendingRequestEvent,
@ -2250,6 +2250,7 @@ USBH_PdoRemoveDevice(IN PUSBHUB_PORT_PDO_EXTENSION PortExtension,
if (WakeIrp)
{
ASSERT(HubExtension);
USBH_CompletePowerIrp(HubExtension, WakeIrp, STATUS_CANCELLED);
}
@ -2270,6 +2271,7 @@ USBH_PdoRemoveDevice(IN PUSBHUB_PORT_PDO_EXTENSION PortExtension,
if (DeviceHandle)
{
ASSERT(HubExtension);
Status = USBD_RemoveDeviceEx(HubExtension, DeviceHandle, 0);
if (HubExtension->PortData &&
@ -2283,7 +2285,7 @@ USBH_PdoRemoveDevice(IN PUSBHUB_PORT_PDO_EXTENSION PortExtension,
{
PortExtension->PortPdoFlags &= ~USBHUB_PDO_FLAG_DEVICE_STARTED;
if (HubExtension->PortData)
if (HubExtension && HubExtension->PortData)
{
PortData = &HubExtension->PortData[Port - 1];
@ -2322,14 +2324,18 @@ USBH_PdoRemoveDevice(IN PUSBHUB_PORT_PDO_EXTENSION PortExtension,
DPRINT1("USBH_PdoRemoveDevice: call IoWMIRegistrationControl UNIMPLEMENTED. FIXME\n");
USBHUB_FlushAllTransfers(HubExtension);
if (HubExtension)
USBHUB_FlushAllTransfers(HubExtension);
IoDeleteDevice(PortDevice);
}
}
DPRINT("USBH_PdoRemoveDevice: call USBH_CheckIdleDeferred()\n");
USBH_CheckIdleDeferred(HubExtension);
if (HubExtension)
{
DPRINT("USBH_PdoRemoveDevice: call USBH_CheckIdleDeferred()\n");
USBH_CheckIdleDeferred(HubExtension);
}
return Status;
}