linux-kernel - [PATCH 4.14 089/229] i2c: mux-gpmux: Add of_node

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Message-Id: <20220823080056.892342856@linuxfoundation.org>
Date:   Tue, 23 Aug 2022 10:24:10 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Liang He <windhl@....com>,
        Peter Rosin <peda@...ntia.se>, Wolfram Sang <wsa@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.14 089/229] i2c: mux-gpmux: Add of_node_put() when breaking out of loop

From: Liang He <windhl@....com>

[ Upstream commit 6435319c34704994e19b0767f6a4e6f37439867b ]

In i2c_mux_probe(), we should call of_node_put() when breaking out
of for_each_child_of_node() which will automatically increase and
decrease the refcount.

Fixes: ac8498f0ce53 ("i2c: i2c-mux-gpmux: new driver")
Signed-off-by: Liang He <windhl@....com>
Acked-by: Peter Rosin <peda@...ntia.se>
Signed-off-by: Wolfram Sang <wsa@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/i2c/muxes/i2c-mux-gpmux.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/i2c/muxes/i2c-mux-gpmux.c b/drivers/i2c/muxes/i2c-mux-gpmux.c
index 92cf5f48afe6..5053f1675a29 100644
--- a/drivers/i2c/muxes/i2c-mux-gpmux.c
+++ b/drivers/i2c/muxes/i2c-mux-gpmux.c
@@ -141,6 +141,7 @@ static int i2c_mux_probe(struct platform_device *pdev)
 	return 0;
 
 err_children:
+	of_node_put(child);
 	i2c_mux_del_adapters(muxc);
 err_parent:
 	i2c_put_adapter(parent);
-- 
2.35.1