K 10
svn:author
V 6
philip
K 8
svn:date
V 27
2008-02-28T18:31:54.000000Z
K 7
svn:log
V 223
Zero sc->vnode if mdsetcred() fails.

This fixes the panic which happens when mdcreate_vnode() calls vn_close()
and mddestroy() calls it again further down the error handling path.

Reviewed by:	kris, kib
MFC after:	3 days

END