[PATCH] net/9p/trans_virtio.c: add a terminal char for mount tag

[piaojun]

chan->tag has no terminal char at last which will result in printing messy
code when debugging code. So we should add '\0' for tag.

Signed-off-by: Jun Piao <piao...@huawei.com>
---
 net/9p/trans_virtio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index d422bfc..49d71d6 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -585,7 +585,7 @@ static int p9_virtio_probe(struct virtio_device *vdev)
                err = -EINVAL;
                goto out_free_vq;
        }
-       tag = kmalloc(tag_len, GFP_KERNEL);
+       tag = kzalloc(tag_len + 1, GFP_KERNEL);
        if (!tag) {
                err = -ENOMEM;
                goto out_free_vq;
--