Prevent a read of powInfo[-1] in the first iteration.
Signed-off-by: Roel Kluin <roel.kluin@xxxxxxxxx>
---
diff --git a/drivers/net/wireless/ath/ath9k/eeprom.c b/drivers/net/wireless/ath/ath9k/eeprom.c
index ce0e86c..e67db2c 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/eeprom.c
@@ -150,10 +150,10 @@ static void ath9k_hw_get_legacy_target_powers(struct ath_hw *ah,
IS_CHAN_2GHZ(chan))) {
matchIndex = i;
break;
- } else if ((freq < ath9k_hw_fbin2freq(powInfo[i].bChannel,
- IS_CHAN_2GHZ(chan))) &&
- (freq > ath9k_hw_fbin2freq(powInfo[i - 1].bChannel,
- IS_CHAN_2GHZ(chan)))) {
+ } else if (freq < ath9k_hw_fbin2freq(powInfo[i].bChannel,
+ IS_CHAN_2GHZ(chan)) && i > 0 &&
+ freq > ath9k_hw_fbin2freq(powInfo[i - 1].bChannel,
+ IS_CHAN_2GHZ(chan))) {
lowIndex = i - 1;
break;
}
@@ -268,10 +268,10 @@ static void ath9k_hw_get_target_powers(struct ath_hw *ah,
matchIndex = i;
break;
} else
- if ((freq < ath9k_hw_fbin2freq(powInfo[i].bChannel,
- IS_CHAN_2GHZ(chan))) &&
- (freq > ath9k_hw_fbin2freq(powInfo[i - 1].bChannel,
- IS_CHAN_2GHZ(chan)))) {
+ if (freq < ath9k_hw_fbin2freq(powInfo[i].bChannel,
+ IS_CHAN_2GHZ(chan)) && i > 0 &&
+ freq > ath9k_hw_fbin2freq(powInfo[i - 1].bChannel,
+ IS_CHAN_2GHZ(chan))) {
lowIndex = i - 1;
break;
}
--
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