From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 12 Jul 2019 06:19:35 +0000 (+0200)
Subject: mt76: mt7603: fix invalid fallback rates
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=820e4da1746f999c91fbfcb320ac91c6a17b9777;p=linux.git

mt76: mt7603: fix invalid fallback rates

Only decrement the rate index on duplicate rates if it is not already 0

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---

diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/mac.c b/drivers/net/wireless/mediatek/mt76/mt7603/mac.c
index 40db1cbc832d3..81fb4276e7420 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7603/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7603/mac.c
@@ -639,6 +639,9 @@ void mt7603_wtbl_set_rates(struct mt7603_dev *dev, struct mt7603_sta *sta,
 			    IEEE80211_TX_RC_40_MHZ_WIDTH)
 				continue;
 
+			if (!rates[i].idx)
+				continue;
+
 			rates[i].idx--;
 		}