rt2x00: Use the correct size when copying the control info in txdone

The sizeof() operator was incorrectly applied to the pointer, not the struct.
Signed-off-by: Mattias Nissler <mattias.nissler@gmx.de>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2x00dev.c

@@ -521,7 +521,7 @@ void rt2x00lib_txdone(struct queue_entry *entry,
 	tx_status.ack_signal = 0;
 	tx_status.excessive_retries = (txdesc->status == TX_FAIL_RETRY);
 	tx_status.retry_count = txdesc->retry;
-	memcpy(&tx_status.control, txdesc->control, sizeof(txdesc->control));
+	memcpy(&tx_status.control, txdesc->control, sizeof(*txdesc->control));
 
 	if (!(tx_status.control.flags & IEEE80211_TXCTL_NO_ACK)) {
 		if (success)