From cc5f58aee180f1f8dbdbc136ecb3cdd190b29068 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Sat, 2 May 2020 01:16:10 +0200
Subject: [PATCH] mt76: mt7615: check return value of mt7615_eeprom_get_power_index
Git-commit: cc5f58aee180f1f8dbdbc136ecb3cdd190b29068
Patch-mainline: v5.8-rc1
References: jsc#SLE-13430
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>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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]);
}
--
2.16.4