wined3d: fix size of buffer in swapchain_create_context_for_thread()

[Stefan Dösinger]

The patch seems OK to me.

Am 31.05.2010 um 07:09 schrieb Dan Kegel:

> While testing Battlefield: Bad Company 2, I saw a glibc memory corruption error,
> so I ran with +heap,+relay,+d3d.  That showed
> err:heap:HEAP_ValidateInUseArena Heap 0x110000: block 0x13ef80 tail
> overwritten at 0x13ef85 (byte 0/11 == 0x40)
> Inspection of code before the block in question was allocated led me
> to the lines
> 
> dlls/wined3d/swapchain.c:972:
>    newArray = HeapAlloc(GetProcessHeap(), 0, sizeof(*newArray) *
> This->num_contexts + 1);
>    ...
>    newArray[This->num_contexts] = ctx;
> which seem to be missing some parentheses.
> 
> Sure enough, the attached patch got rid of the heap error.
> <swapchain.patch>