From: Liang He <windhl@126.com>
Date: Mon, 4 Jul 2022 08:34:21 +0000 (+0800)
Subject: mediatek: mt76: eeprom: fix missing of_node_put() in mt76_find_power_limits_node()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=c4ff3cef5d9628f891df70dcfe892acabbee85ce;p=linux.git

mediatek: mt76: eeprom: fix missing of_node_put() in mt76_find_power_limits_node()

[ Upstream commit 3bd53ea02d77917c2314ec7be9e2d05be22f87d3 ]

We should use of_node_put() for the reference 'np' returned by
of_get_child_by_name() which will increase the refcount.

Fixes: 22b980badc0f ("mt76: add functions for parsing rate power limits from DT")
Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/net/wireless/mediatek/mt76/eeprom.c b/drivers/net/wireless/mediatek/mt76/eeprom.c
index 3b47e85e95e7c..db0cd56c8dc7f 100644
--- a/drivers/net/wireless/mediatek/mt76/eeprom.c
+++ b/drivers/net/wireless/mediatek/mt76/eeprom.c
@@ -146,10 +146,13 @@ mt76_find_power_limits_node(struct mt76_dev *dev)
 		}
 
 		if (mt76_string_prop_find(country, dev->alpha2) ||
-		    mt76_string_prop_find(regd, region_name))
+		    mt76_string_prop_find(regd, region_name)) {
+			of_node_put(np);
 			return cur;
+		}
 	}
 
+	of_node_put(np);
 	return fallback;
 }