From 42cb5353b8ce9c85c04615beca9bab6245454153 Mon Sep 17 00:00:00 2001
From: Eric Kohl <eric.kohl@reactos.org>
Date: Sun, 15 Oct 2017 00:06:22 +0200
Subject: [PATCH] [STORORT] Allocate the miniport device extension and use it
 the calls to HwFindAdapter and HwInitialize. CORE-13866

---
 drivers/storage/port/storport/fdo.c      | 11 +++++---
 drivers/storage/port/storport/miniport.c | 32 +++++++++++++++++++++---
 drivers/storage/port/storport/precomp.h  | 14 ++++++++---
 3 files changed, 48 insertions(+), 9 deletions(-)

diff --git a/drivers/storage/port/storport/fdo.c b/drivers/storage/port/storport/fdo.c
index be6b6936941..6338c48d121 100644
--- a/drivers/storage/port/storport/fdo.c
+++ b/drivers/storage/port/storport/fdo.c
@@ -38,9 +38,14 @@ PortFdoStartMiniport(
         return STATUS_NO_SUCH_DEVICE;
 
     /* Initialize the miniport */
-    MiniportInitialize(&DeviceExtension->Miniport,
-                       DeviceExtension,
-                       InitData);
+    Status = MiniportInitialize(&DeviceExtension->Miniport,
+                                DeviceExtension,
+                                InitData);
+    if (!NT_SUCCESS(Status))
+    {
+        DPRINT1("MiniportInitialize() failed (Status 0x%08lx)\n", Status);
+        return Status;
+    }
 
     /* Call the miniports FindAdapter function */
     Status = MiniportFindAdapter(&DeviceExtension->Miniport);
diff --git a/drivers/storage/port/storport/miniport.c b/drivers/storage/port/storport/miniport.c
index 8e1346fe8b4..4e0b37e1823 100644
--- a/drivers/storage/port/storport/miniport.c
+++ b/drivers/storage/port/storport/miniport.c
@@ -15,14 +15,38 @@
 
 /* FUNCTIONS ******************************************************************/
 
-VOID
+NTSTATUS
 MiniportInitialize(
     _In_ PMINIPORT Miniport,
     _In_ PFDO_DEVICE_EXTENSION DeviceExtension,
     _In_ PHW_INITIALIZATION_DATA InitData)
 {
+    PMINIPORT_DEVICE_EXTENSION MiniportExtension;
+    ULONG Size;
+
+    DPRINT1("MiniportInitialize(%p %p %p)\n",
+            Miniport, DeviceExtension, InitData);
+
     Miniport->DeviceExtension = DeviceExtension;
     Miniport->InitData = InitData;
+
+    /* Calculate the miniport device extension size */
+    Size = sizeof(MINIPORT_DEVICE_EXTENSION) +
+           Miniport->InitData->DeviceExtensionSize;
+
+    /* Allocate and initialize the miniport device extension */
+    MiniportExtension = ExAllocatePoolWithTag(NonPagedPool,
+                                              Size,
+                                              TAG_MINIPORT_DATA);
+    if (MiniportExtension == NULL)
+        return STATUS_NO_MEMORY;
+
+    RtlZeroMemory(MiniportExtension, Size);
+
+    MiniportExtension->Miniport = Miniport;
+    Miniport->MiniportExtension = MiniportExtension;
+
+    return STATUS_SUCCESS;
 }
 
 
@@ -36,7 +60,8 @@ MiniportFindAdapter(
 
     DPRINT1("MiniportFindAdapter(%p)\n", Miniport);
 
-    Result = Miniport->InitData->HwFindAdapter(NULL,
+    /* Call the miniport HwFindAdapter routine */
+    Result = Miniport->InitData->HwFindAdapter(&Miniport->MiniportExtension->HwDeviceExtension,
                                                NULL,
                                                NULL,
                                                NULL,
@@ -84,7 +109,8 @@ MiniportHwInitialize(
 
     DPRINT1("MiniportHwInitialize(%p)\n", Miniport);
 
-    Status = Miniport->InitData->HwInitialize(NULL);
+    /* Call the miniport HwInitialize routine */
+    Status = Miniport->InitData->HwInitialize(&Miniport->MiniportExtension->HwDeviceExtension);
     DPRINT1("HwInitialize() returned 0x%08lx\n", Status);
 
     return Status;
diff --git a/drivers/storage/port/storport/precomp.h b/drivers/storage/port/storport/precomp.h
index fc1224e8513..350ca6854df 100644
--- a/drivers/storage/port/storport/precomp.h
+++ b/drivers/storage/port/storport/precomp.h
@@ -23,8 +23,9 @@
 #include <wdmguid.h>
 
 /* Memory Tags */
-#define TAG_GLOBAL_DATA 'DGtS'
-#define TAG_INIT_DATA   'DItS'
+#define TAG_GLOBAL_DATA    'DGtS'
+#define TAG_INIT_DATA      'DItS'
+#define TAG_MINIPORT_DATA  'DMtS'
 
 typedef enum
 {
@@ -61,10 +62,17 @@ typedef struct _DRIVER_OBJECT_EXTENSION
     LIST_ENTRY InitDataListHead;
 } DRIVER_OBJECT_EXTENSION, *PDRIVER_OBJECT_EXTENSION;
 
+typedef struct _MINIPORT_DEVICE_EXTENSION
+{
+    struct _MINIPORT *Miniport;
+    UCHAR HwDeviceExtension[0];
+} MINIPORT_DEVICE_EXTENSION, *PMINIPORT_DEVICE_EXTENSION;
+
 typedef struct _MINIPORT
 {
     struct _FDO_DEVICE_EXTENSION *DeviceExtension;
     PHW_INITIALIZATION_DATA InitData;
+    PMINIPORT_DEVICE_EXTENSION MiniportExtension;
 } MINIPORT, *PMINIPORT;
 
 typedef struct _FDO_DEVICE_EXTENSION
@@ -107,7 +115,7 @@ PortFdoPnp(
 
 /* miniport.c */
 
-VOID
+NTSTATUS
 MiniportInitialize(
     _In_ PMINIPORT Miniport,
     _In_ PFDO_DEVICE_EXTENSION DeviceExtension,
-- 
2.17.1