2020-05-01 23:18:38

by Lorenzo Bianconi

[permalink] [raw]
Subject: [PATCH] mt76: mt7615: check return value of mt7615_eeprom_get_power_index

mt7615_eeprom_get_power_index can return negative error value.
Check mt7615_eeprom_get_power_index return value before using it

Signed-off-by: Lorenzo Bianconi <[email protected]>
---
drivers/net/wireless/mediatek/mt76/mt7615/init.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/init.c b/drivers/net/wireless/mediatek/mt76/mt7615/init.c
index 81294bb2b06b..d831d647d237 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/init.c
@@ -247,6 +247,9 @@ void mt7615_init_txpower(struct mt7615_dev *dev,
int index;

index = mt7615_eeprom_get_power_index(dev, chan, j);
+ if (index < 0)
+ continue;
+
target_power = max(target_power, eep[index]);
}

--
2.25.4