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>
openwrt · Jul 12, 2019 · 0ce4682 · 0ce4682
1 parent 3d43dd8
commit 0ce4682
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/mt7603/mac.c b/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--;
 		}