[PATCH] xen-netback: use kstrdup instead of open-coding it

[cgel.zte@xxxxxxxxx]

From: Minghao Chi <chi.minghao@xxxxxxxxxx>

use kstrdup instead of open-coding it.

Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
Signed-off-by: Minghao Chi <chi.minghao@xxxxxxxxxx>
---
 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 e85b3c5d4acc..c1ba4294f364 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -865,13 +865,12 @@ 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);
-- 
2.25.1