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

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/init.c b/drivers/net/wireless/mediatek/mt76/mt7615/init.c
index 81294bb2b06be02d5d9f50bd525bdd16dd40936f..d831d647d2378263ee8c4ce1ea17ab0a87c2e7e6 100644 (file)
--- 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]);
                }