mountmgr: Frame device service functions with IoGetCurrentIrpStackLocation and IoCompleteRequest.

dlls/mountmgr.sys/device.c

diff --git a/dlls/mountmgr.sys/device.c b/dlls/mountmgr.sys/device.c
index bf2bcee..ba5a02b 100644
--- a/dlls/mountmgr.sys/device.c
+++ b/dlls/mountmgr.sys/device.c
@@ -858,7 +858,7 @@
 /* handler for ioctls on the harddisk device */
 static NTSTATUS WINAPI harddisk_ioctl( DEVICE_OBJECT *device, IRP *irp )
 {
-    IO_STACK_LOCATION *irpsp = irp->Tail.Overlay.s.u2.CurrentStackLocation;
+    IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation( irp );
     struct disk_device *dev = device->DeviceExtension;
 
     TRACE( "ioctl %x insize %u outsize %u\n",
@@ -904,6 +904,7 @@
     }
 
     LeaveCriticalSection( &device_section );
+    IoCompleteRequest( irp, IO_NO_INCREMENT );
     return irp->IoStatus.u.Status;
 }
 

dlls/mountmgr.sys/mountmgr.c

diff --git a/dlls/mountmgr.sys/mountmgr.c b/dlls/mountmgr.sys/mountmgr.c
index c92e4a4..87d9007 100644
--- a/dlls/mountmgr.sys/mountmgr.c
+++ b/dlls/mountmgr.sys/mountmgr.c
@@ -351,7 +351,7 @@
 /* handler for ioctls on the mount manager device */
 static NTSTATUS WINAPI mountmgr_ioctl( DEVICE_OBJECT *device, IRP *irp )
 {
-    IO_STACK_LOCATION *irpsp = irp->Tail.Overlay.s.u2.CurrentStackLocation;
+    IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation( irp );
 
     TRACE( "ioctl %x insize %u outsize %u\n",
            irpsp->Parameters.DeviceIoControl.IoControlCode,
@@ -390,6 +390,7 @@
         irp->IoStatus.u.Status = STATUS_NOT_SUPPORTED;
         break;
     }
+    IoCompleteRequest( irp, IO_NO_INCREMENT );
     return irp->IoStatus.u.Status;
 }