[PATCH] xen-netback: use kstrdup() in connect_data_rings()

[Denis Efremov <efremov@xxxxxxxxx>]

Use kstrdup() instead of opencoded alloc and copy. kzalloc() is
excessive here.

Signed-off-by: Denis Efremov <efremov@xxxxxxxxx>
---
 drivers/net/xen-netback/xenbus.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index 286054b60d47..69352154a51b 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -839,13 +839,12 @@ static int connect_data_rings(struct backend_info *be,
         * queue-N.
         */
        if (num_queues == 1) {
-               xspath = kzalloc(strlen(dev->otherend) + 1, GFP_KERNEL);
+               xspath = kstrdup(dev->otherend, GFP_KERNEL);
                if (!xspath) {
                        xenbus_dev_fatal(dev, -ENOMEM,
                                         "reading ring references");
                        return -ENOMEM;
                }
-               strcpy(xspath, dev->otherend);
        } else {
                xspathsize = strlen(dev->otherend) + xenstore_path_ext_size;
                xspath = kzalloc(xspathsize, GFP_KERNEL);
-- 
2.26.2