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>

2 files changed, 2 insertions, 4 deletions

diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c
index 8582236e4cad..cbf30e515f29 100644
--- 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 1335cbe1191d..25eae405f622 100644
--- 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[] = {