linux-kernel - [PATCH] rpmsg: virtio_rpmsg_bus.c: Cleaning up missing null-terminate in conjunction with strncpy

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Date:	Sat, 26 Jul 2014 16:26:09 +0200
From:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
To:	Ohad Ben-Cohen <ohad@...ery.com>, linux-kernel@...r.kernel.org
Cc:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
Subject: [PATCH] rpmsg: virtio_rpmsg_bus.c:  Cleaning up missing null-terminate in conjunction with strncpy

Replacing strncpy with strlcpy to avoid strings that lacks null terminate.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
---
 drivers/rpmsg/virtio_rpmsg_bus.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c
index b6135d4..f5772e1 100644
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@ -383,7 +383,7 @@ static int rpmsg_dev_probe(struct device *dev)
 			virtio_has_feature(vrp->vdev, VIRTIO_RPMSG_F_NS)) {
 		struct rpmsg_ns_msg nsm;
 
-		strncpy(nsm.name, rpdev->id.name, RPMSG_NAME_SIZE);
+		strlcpy(nsm.name, rpdev->id.name, RPMSG_NAME_SIZE);
 		nsm.addr = rpdev->src;
 		nsm.flags = RPMSG_NS_CREATE;
 
@@ -408,7 +408,7 @@ static int rpmsg_dev_remove(struct device *dev)
 			virtio_has_feature(vrp->vdev, VIRTIO_RPMSG_F_NS)) {
 		struct rpmsg_ns_msg nsm;
 
-		strncpy(nsm.name, rpdev->id.name, RPMSG_NAME_SIZE);
+		strlcpy(nsm.name, rpdev->id.name, RPMSG_NAME_SIZE);
 		nsm.addr = rpdev->src;
 		nsm.flags = RPMSG_NS_DESTROY;
 
@@ -526,7 +526,7 @@ static struct rpmsg_channel *rpmsg_create_channel(struct virtproc_info *vrp,
 	 */
 	rpdev->announce = rpdev->src != RPMSG_ADDR_ANY ? true : false;
 
-	strncpy(rpdev->id.name, chinfo->name, RPMSG_NAME_SIZE);
+	strlcpy(rpdev->id.name, chinfo->name, RPMSG_NAME_SIZE);
 
 	/* very simple device indexing plumbing which is enough for now */
 	dev_set_name(&rpdev->dev, "rpmsg%d", rpmsg_dev_index++);
@@ -925,7 +925,7 @@ static void rpmsg_ns_cb(struct rpmsg_channel *rpdev, void *data, int len,
 			msg->flags & RPMSG_NS_DESTROY ? "destroy" : "creat",
 			msg->name, msg->addr);
 
-	strncpy(chinfo.name, msg->name, sizeof(chinfo.name));
+	strlcpy(chinfo.name, msg->name, sizeof(chinfo.name));
 	chinfo.src = RPMSG_ADDR_ANY;
 	chinfo.dst = msg->addr;
 
-- 
1.7.10.4

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