[janderwald] 60126: [AUDIO] - Unmap audio buffers after completion

Author: janderwald
Date: Sun Sep 15 10:30:14 2013
New Revision: 60126
URL: http://svn.reactos.org/svn/reactos?rev=60126&view=rev
Log:
[AUDIO]
- Unmap audio buffers after completion
Modified:
    trunk/reactos/drivers/wdm/audio/backpln/portcls/irpstream.cpp
Modified: trunk/reactos/drivers/wdm/audio/backpln/portcls/irpstream.cpp
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/wdm/audio/backpln/…
==============================================================================
--- trunk/reactos/drivers/wdm/audio/backpln/portcls/irpstream.cpp       [iso-8859-1]
(original)
+++ trunk/reactos/drivers/wdm/audio/backpln/portcls/irpstream.cpp       [iso-8859-1] Sun
Sep 15 10:30:14 2013
@@ -47,14 +47,10 @@
     ULONG m_MaxFrameSize;
     ULONG m_Alignment;
     ULONG m_TagSupportEnabled;
-    ULONG m_NumDataAvailable;
+    volatile ULONG m_NumDataAvailable;
     volatile ULONG m_CurrentOffset;
-
-    PIRP m_Irp;
-
-
-    LONG m_Ref;
-
+    volatile PIRP m_Irp;
+    volatile LONG m_Ref;
 };
 typedef struct
@@ -367,6 +363,8 @@
     PKSSTREAM_DATA StreamData;
     ULONG Size;
     PIO_STACK_LOCATION IoStack;
+    ULONG Index;
+    PMDL Mdl;
     // sanity check
     ASSERT(m_Irp);
@@ -447,6 +445,13 @@
             // done
             return;
+        }
+
+        Mdl = m_Irp->MdlAddress;
+        for(Index = 0; Index < StreamData->StreamHeaderCount; Index++)
+        {
+            MmUnmapLockedPages(StreamData->Data[Index], Mdl);
+            Mdl = Mdl->Next;
         }
         // free stream data array