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-rw-r--r--net/9p/trans_virtio.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index 36a1a739ad68..486df019f875 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -504,7 +504,10 @@ static ssize_t p9_mount_tag_show(struct device *dev,
vdev = dev_to_virtio(dev);
chan = vdev->priv;
- return snprintf(buf, chan->tag_len + 1, "%s", chan->tag);
+ memcpy(buf, chan->tag, chan->tag_len);
+ buf[chan->tag_len] = 0;
+
+ return chan->tag_len + 1;
}
static DEVICE_ATTR(mount_tag, 0444, p9_mount_tag_show, NULL);