USB: use kzfree()

Use kzfree() instead of memset() + kfree().

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c
index 8582236..cbf30e5 100644 (file)
--- a/drivers/usb/host/hwa-hc.c
+++ b/drivers/usb/host/hwa-hc.c
@@ -464,8 +464,7 @@ static int __hwahc_dev_set_key(struct wusbhc *wusbhc, u8 port_idx, u32 tkid,
                        port_idx << 8 | iface_no,
                        keyd, keyd_len, 1000 /* FIXME: arbitrary */);
 
-       memset(keyd, 0, sizeof(*keyd)); /* clear keys etc. */
-       kfree(keyd);
+       kzfree(keyd); /* clear keys etc. */
        return result;
 }
 

diff --git a/drivers/usb/wusbcore/cbaf.c b/drivers/usb/wusbcore/cbaf.c
index 1335cbe..25eae40 100644 (file)
--- a/drivers/usb/wusbcore/cbaf.c
+++ b/drivers/usb/wusbcore/cbaf.c
@@ -638,8 +638,7 @@ static void cbaf_disconnect(struct usb_interface *iface)
        usb_put_intf(iface);
        kfree(cbaf->buffer);
        /* paranoia: clean up crypto keys */
-       memset(cbaf, 0, sizeof(*cbaf));
-       kfree(cbaf);
+       kzfree(cbaf);
 }
 
 static struct usb_device_id cbaf_id_table[] = {