linux-kernel - [PATCH] bus: arm-cci: add missing of_node

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Message-Id: <1639388609-63796-1-git-send-email-wangqing@vivo.com>
Date:   Mon, 13 Dec 2021 01:43:29 -0800
From:   Qing Wang <wangqing@...o.com>
To:     linux-kernel@...r.kernel.org
Cc:     Wang Qing <wangqing@...o.com>
Subject: [PATCH] bus: arm-cci: add missing of_node_put before break

From: Wang Qing <wangqing@...o.com>

Fix following coccicheck warning:
WARNING: Function "for_each_available_child_of_node" 
should have of_node_put() before return.

Early exits from for_each_available_child_of_node should decrement the
node reference counter.

Signed-off-by: Wang Qing <wangqing@...o.com>
---
 drivers/bus/arm-cci.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c
index b8184a903..1f84a55
--- a/drivers/bus/arm-cci.c
+++ b/drivers/bus/arm-cci.c
@@ -461,8 +461,10 @@ static int cci_probe_ports(struct device_node *np)
 
 		i = nb_ace + nb_ace_lite;
 
-		if (i >= nb_cci_ports)
+		if (i >= nb_cci_ports) {
+			of_node_put(cp);
 			break;
+		}
 
 		if (of_property_read_string(cp, "interface-type",
 					&match_str)) {
-- 
2.7.4