Input: usbtouchscreen - switch to using kmemdup()

Use kmemdup when some other buffer is immediately copied into the
allocated region.

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index 99330bbdbac..0b0ae2e17a6 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -811,12 +811,11 @@ static int nexio_init(struct usbtouch_usb *usbtouch)
 
         priv = usbtouch->priv;
 
-        priv->ack_buf = kmalloc(sizeof(nexio_ack_pkt), GFP_KERNEL);
+        priv->ack_buf = kmemdup(nexio_ack_pkt, sizeof(nexio_ack_pkt),
+                                GFP_KERNEL);
         if (!priv->ack_buf)
                 goto err_priv;
 
-        memcpy(priv->ack_buf, nexio_ack_pkt, sizeof(nexio_ack_pkt));
-
         priv->ack = usb_alloc_urb(0, GFP_KERNEL);
         if (!priv->ack) {
                 dbg("%s - usb_alloc_urb failed: usbtouch->ack", __func__);