[reactos] 06/10: [ISAPNP] Report removal relations on ReadDataPort

[Hervé Poussineau]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=2fe644dc860767ec38035…

commit 2fe644dc860767ec38035f730b11fadf902a8646
Author:     Hervé Poussineau <hpoussin(a)reactos.org>
AuthorDate: Mon Mar 16 19:43:37 2020 +0100
Commit:     Hervé Poussineau <hpoussin(a)reactos.org>
CommitDate: Fri Mar 20 22:40:11 2020 +0100

    [ISAPNP] Report removal relations on ReadDataPort
---
 drivers/bus/isapnp/isapnp.c | 2 ++
 drivers/bus/isapnp/isapnp.h | 1 +
 drivers/bus/isapnp/pdo.c    | 6 ++++++
 3 files changed, 9 insertions(+)

diff --git a/drivers/bus/isapnp/isapnp.c b/drivers/bus/isapnp/isapnp.c
index 41488efc5a7..7f2731b7ce4 100644
--- a/drivers/bus/isapnp/isapnp.c
+++ b/drivers/bus/isapnp/isapnp.c
@@ -194,6 +194,7 @@ IsaPnpFillDeviceRelations(
            PdoExt->Common.Self = IsaDevice->Pdo;
            PdoExt->Common.State = dsStopped;
            PdoExt->IsaPnpDevice = IsaDevice;
+           PdoExt->FdoExt = FdoExt;
 
            Status = IsaFdoCreateDeviceIDs(PdoExt);
            if (!NT_SUCCESS(Status))
@@ -352,6 +353,7 @@ IsaPnpCreateReadPortDO(PISAPNP_FDO_EXTENSION FdoExt)
   PdoExt->Common.IsFdo = FALSE;
   PdoExt->Common.Self = FdoExt->DataPortPdo;
   PdoExt->Common.State = dsStopped;
+  PdoExt->FdoExt = FdoExt;
 
   Status = IsaPnpDuplicateUnicodeString(0,
                                         &DeviceID,
diff --git a/drivers/bus/isapnp/isapnp.h b/drivers/bus/isapnp/isapnp.h
index 724ccfea79d..e62381b6760 100644
--- a/drivers/bus/isapnp/isapnp.h
+++ b/drivers/bus/isapnp/isapnp.h
@@ -48,6 +48,7 @@ typedef struct _ISAPNP_FDO_EXTENSION {
 typedef struct _ISAPNP_PDO_EXTENSION {
     ISAPNP_COMMON_EXTENSION Common;
     PISAPNP_LOGICAL_DEVICE IsaPnpDevice;
+    PISAPNP_FDO_EXTENSION FdoExt;
     UNICODE_STRING DeviceID;
     UNICODE_STRING HardwareIDs;
     UNICODE_STRING InstanceID;
diff --git a/drivers/bus/isapnp/pdo.c b/drivers/bus/isapnp/pdo.c
index 1f3f7e18f7b..639f07d5aa1 100644
--- a/drivers/bus/isapnp/pdo.c
+++ b/drivers/bus/isapnp/pdo.c
@@ -19,6 +19,12 @@ IsaPdoQueryDeviceRelations(
 {
     PDEVICE_RELATIONS DeviceRelations;
 
+    if (IrpSp->Parameters.QueryDeviceRelations.Type == RemovalRelations &&
+        PdoExt->Common.Self == PdoExt->FdoExt->DataPortPdo)
+    {
+        return IsaPnpFillDeviceRelations(PdoExt->FdoExt, Irp, FALSE);
+    }
+
     if (IrpSp->Parameters.QueryDeviceRelations.Type != TargetDeviceRelation)
         return Irp->IoStatus.Status;