linux-kernel - [PATCH 5.14 633/849] soc: qcom: apr: Add of_node

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Message-Id: <20211115165441.688118877@linuxfoundation.org>
Date:   Mon, 15 Nov 2021 18:01:56 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Wan Jiabing <wanjiabing@...o.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.14 633/849] soc: qcom: apr: Add of_node_put() before return

From: Wan Jiabing <wanjiabing@...o.com>

[ Upstream commit 72f1aa6205d84337b90b065f602a8fe190821781 ]

Fix following coccicheck warning:

./drivers/soc/qcom/apr.c:485:1-23: WARNING: Function
for_each_child_of_node should have of_node_put() before return

Early exits from for_each_child_of_node should decrement the
node reference counter.

Fixes: 834735662602 ("soc: qcom: apr: Add avs/audio tracking functionality")
Signed-off-by: Wan Jiabing <wanjiabing@...o.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Link: https://lore.kernel.org/r/20211014083017.19714-1-wanjiabing@vivo.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/soc/qcom/apr.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/soc/qcom/apr.c b/drivers/soc/qcom/apr.c
index 7abfc8c4fdc72..f736d208362c9 100644
--- a/drivers/soc/qcom/apr.c
+++ b/drivers/soc/qcom/apr.c
@@ -323,12 +323,14 @@ static int of_apr_add_pd_lookups(struct device *dev)
 						    1, &service_path);
 		if (ret < 0) {
 			dev_err(dev, "pdr service path missing: %d\n", ret);
+			of_node_put(node);
 			return ret;
 		}
 
 		pds = pdr_add_lookup(apr->pdr, service_name, service_path);
 		if (IS_ERR(pds) && PTR_ERR(pds) != -EALREADY) {
 			dev_err(dev, "pdr add lookup failed: %ld\n", PTR_ERR(pds));
+			of_node_put(node);
 			return PTR_ERR(pds);
 		}
 	}
-- 
2.33.0