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[DSOUND] Check arguments in IDirectSoundFullDuplex::Initialize.

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This prevents a crash in winetest_dsound:duplex
This commit is contained in:
Mark Jansen
2018-03-18 15:56:59 +01:00
parent 2d9c88e0c5
commit 775e2aea3c
1 changed files with 3 additions and 0 deletions
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3
dll/directx/wine/dsound/duplex.c
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@@ -535,6 +535,9 @@ IDirectSoundFullDuplexImpl_Initialize(
lpDscBufferDesc, lpDsBufferDesc, hWnd, dwLevel,
lplpDirectSoundCaptureBuffer8, lplpDirectSoundBuffer8);
if (!lplpDirectSoundCaptureBuffer8 || !lplpDirectSoundBuffer8)
return E_INVALIDARG;
if (This->renderer_device != NULL || This->capture_device != NULL) {
WARN("already initialized\n");
*lplpDirectSoundCaptureBuffer8 = NULL;