[RESEND] virtiofs: add filesystem context source name check

[Miklos Szeredi]

On Mon, 7 Apr 2025 at 13:51, Xiangsheng Hou <xiangsheng.hou at mediatek.com> wrote:
>
> In certain scenarios, for example, during fuzz testing, the source
> name may be NULL, which could lead to a kernel panic. Therefore, an
> extra check for the source name should be added.
>
> Signed-off-by: Xiangsheng Hou <xiangsheng.hou at mediatek.com>

Acked-by: Miklos Szeredi <mszeredi at redhat.com>

Thanks,
Miklos