msxml3: Return E_INVALIDARG when value is NULL

[Alistair Leslie-Hughes]

Hi,

Changelog:
	msxml3: Return E_INVALIDARG in get_nodeValue when value is NULL

Best Regards
  Alistair Leslie-Hughes
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0008-Check-the-return-value-before-use.patch
Type: text/x-patch
Size: 0 bytes
Desc: not available
Url : http://www.winehq.org/pipermail/wine-patches/attachments/20080103/0636cf48/attachment.bin