--- zzzz-none-000/linux-3.10.107/drivers/net/wireless/ath/ath6kl/bmi.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/net/wireless/ath/ath6kl/bmi.h	2021-02-04 17:41:59.000000000 +0000
@@ -242,7 +242,8 @@
 		(void) (check_type == val);				\
 		addr = ath6kl_get_hi_item_addr(ar, HI_ITEM(item));	\
 		ret = ath6kl_bmi_read(ar, addr, (u8 *) &tmp, 4);	\
-		*val = le32_to_cpu(tmp);				\
+		if (!ret)						\
+			*val = le32_to_cpu(tmp);			\
 		ret;							\
 	})