[sheepdog] [PATCH] collie: fix NULL dereference in find_vdi_name()

[MORITA Kazutaka]

At Wed,  6 Feb 2013 17:43:07 +0800,
Liu Yuan wrote:
> 
> From: Liu Yuan <tailai.ly at taobao.com>
> 
> Some users pass NULL of tag to find_vdi_name, such as vdi_rollback(),
> in this case we'll segfault.
> 
> Signed-off-by: Liu Yuan <tailai.ly at taobao.com>
> ---
>  collie/vdi.c |    3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)

Applied, thanks!

Kazutaka