Michael Karcher : dsound: Fix double free in dsound capture.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 84fd6e629a05a87cf788cff8bf009fbc94a269e9
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=84fd6e629a05a87cf788cff8bf009fbc94a269e9

Author: Michael Karcher <wine at mkarcher.dialup.fu-berlin.de>
Date:   Fri May 30 09:34:45 2008 +0200

dsound: Fix double free in dsound capture.

---

 dlls/dsound/capture.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/dlls/dsound/capture.c b/dlls/dsound/capture.c
index f445b4f..c9444a4 100644
--- a/dlls/dsound/capture.c
+++ b/dlls/dsound/capture.c
@@ -860,6 +860,12 @@ IDirectSoundCaptureBufferImpl_Release( LPDIRECTSOUNDCAPTUREBUFFER8 iface )
         if (This->notify)
 	    IDirectSoundNotify_Release((LPDIRECTSOUNDNOTIFY)This->notify);
 
+        /* If driver manages its own buffer, IDsCaptureDriverBuffer_Release
+           should have freed the buffer. Prevent freeing it again in
+           IDirectSoundCaptureBufferImpl_Create */
+        if (!(This->device->drvdesc.dwFlags & DSDDESC_USESYSTEMMEMORY))
+	    This->device->buffer = NULL;
+
 	HeapFree(GetProcessHeap(), 0, This->notifies);
         HeapFree( GetProcessHeap(), 0, This );
 	TRACE("(%p) released\n", This);