linux-kernel - [PATCH AUTOSEL 4.19 18/19] fsi: master-ast-cf: Fix missing of_node_put in fsi_master_acf

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Date:   Wed, 12 Oct 2022 20:26:17 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Lv Ruyi <lv.ruyi@....com.cn>, Zeal Robot <zealci@....com.cn>,
        Joel Stanley <joel@....id.au>, Sasha Levin <sashal@...nel.org>,
        jk@...abs.org, linux-fsi@...ts.ozlabs.org
Subject: [PATCH AUTOSEL 4.19 18/19] fsi: master-ast-cf: Fix missing of_node_put in fsi_master_acf_probe

From: Lv Ruyi <lv.ruyi@....com.cn>

[ Upstream commit 182d98e00e4745fe253cb0c24c63bbac253464a2 ]

of_parse_phandle returns node pointer with refcount incremented, use
of_node_put() on it when done.

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@....com.cn>
Link: https://lore.kernel.org/r/20220407085911.2491719-1-lv.ruyi@zte.com.cn
Signed-off-by: Joel Stanley <joel@....id.au>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/fsi/fsi-master-ast-cf.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/fsi/fsi-master-ast-cf.c b/drivers/fsi/fsi-master-ast-cf.c
index 04d10ea8d343..1d39e435bfd1 100644
--- a/drivers/fsi/fsi-master-ast-cf.c
+++ b/drivers/fsi/fsi-master-ast-cf.c
@@ -1324,12 +1324,14 @@ static int fsi_master_acf_probe(struct platform_device *pdev)
 		}
 		master->cvic = devm_of_iomap(&pdev->dev, np, 0, NULL);
 		if (IS_ERR(master->cvic)) {
+			of_node_put(np);
 			rc = PTR_ERR(master->cvic);
 			dev_err(&pdev->dev, "Error %d mapping CVIC\n", rc);
 			goto err_free;
 		}
 		rc = of_property_read_u32(np, "copro-sw-interrupts",
 					  &master->cvic_sw_irq);
+		of_node_put(np);
 		if (rc) {
 			dev_err(&pdev->dev, "Can't find coprocessor SW interrupt\n");
 			goto err_free;
-- 
2.35.1