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

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Date:   Wed, 1 Aug 2018 15:44:54 +0800
From:   piaojun <piaojun@...wei.com>
To:     Dominique Martinet <asmadeus@...ewreck.org>
CC:     "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "Eric Van Hensbergen" <ericvh@...il.com>,
        Ron Minnich <rminnich@...dia.gov>,
        "Latchesar Ionkov" <lucho@...kov.net>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        <v9fs-developer@...ts.sourceforge.net>,
        "Greg Kurz" <groug@...d.org>
Subject: [PATCH] net/9p/trans_virtio.c: add a terminal char for mount tag

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 <piaojun@...wei.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;
--