wined3d: Do not addref a NULL backbuffer in IWineD3DSwapChain::GetBackBuffer.

a55da88d · Stefan Dösinger · Alexandre Julliard · 00598e49 · a55da88d
Commit a55da88d authored May 23, 2006 by Stefan Dösinger Committed by Alexandre Julliard May 23, 2006
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swapchain.c dlls/wined3d/swapchain.c +1 -1

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--- a/dlls/wined3d/swapchain.c
+++ b/dlls/wined3d/swapchain.c
@@ -382,7 +382,7 @@ HRESULT WINAPI IWineD3DSwapChainImpl_GetBackBuffer(IWineD3DSwapChain *iface, UIN
    }
    /* Note inc ref on returned surface */
-    IWineD3DSurface_AddRef(*ppBackBuffer);
+    if(*ppBackBuffer) IWineD3DSurface_AddRef(*ppBackBuffer);
    return WINED3D_OK;
 }