st/nine: fix wrong variable reset
Error detected by Coverity (COPY_PASTE_ERROR) Cc: "10.4" <mesa-stable@lists.freedesktop.org> Reviewed-by:Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by:
Axel Davy <axel.davy@ens.fr> Signed-off-by:
David Heidelberg <david@ixit.cz>