[patch 5/7] usb: use kzfree()

[Johannes Weiner]

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

Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Reviewed-by: Pekka Enberg <penberg@xxxxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
 drivers/usb/host/hwa-hc.c   |    3 +--
 drivers/usb/wusbcore/cbaf.c |    3 +--
 2 files changed, 2 insertions(+), 4 deletions(-)

--- 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 wu
 			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;
 }
 
--- a/drivers/usb/wusbcore/cbaf.c
+++ b/drivers/usb/wusbcore/cbaf.c
@@ -638,8 +638,7 @@ static void cbaf_disconnect(struct usb_i
 	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[] = {


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