ath6kl: Stop using NLA_PUT*().

These macros contain a hidden goto, and are thus extremely error
prone and make code hard to audit.
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/wireless/ath/ath6kl/testmode.c

@@ -55,8 +55,9 @@ void ath6kl_tm_rx_event(struct ath6kl *ar, void *buf, size_t buf_len)
 		ath6kl_warn("failed to allocate testmode rx skb!\n");
 		return;
 	}
-	NLA_PUT_U32(skb, ATH6KL_TM_ATTR_CMD, ATH6KL_TM_CMD_TCMD);
-	NLA_PUT(skb, ATH6KL_TM_ATTR_DATA, buf_len, buf);
+	if (nla_put_u32(skb, ATH6KL_TM_ATTR_CMD, ATH6KL_TM_CMD_TCMD) ||
+	    nla_put(skb, ATH6KL_TM_ATTR_DATA, buf_len, buf))
+		goto nla_put_failure;
 	cfg80211_testmode_event(skb, GFP_KERNEL);
 	return;