linux-kernel - [PATCH 4.19 197/421] eeprom: idt_89hpesx: Put fwnode in matching case during ->probe()

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Date:   Mon, 19 Jul 2021 16:50:08 +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, Huy Duong <qhuyduong@...mail.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 197/421] eeprom: idt_89hpesx: Put fwnode in matching case during ->probe()

From: Andy Shevchenko <andy.shevchenko@...il.com>

[ Upstream commit 3f6ee1c095156a74ab2df605af13020f1ce3e600 ]

device_get_next_child_node() bumps a reference counting of a returned variable.
We have to balance it whenever we return to the caller.

Fixes: db15d73e5f0e ("eeprom: idt_89hpesx: Support both ACPI and OF probing")
Cc: Huy Duong <qhuyduong@...mail.com>
Signed-off-by: Andy Shevchenko <andy.shevchenko@...il.com>
Link: https://lore.kernel.org/r/20210607221757.81465-1-andy.shevchenko@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/misc/eeprom/idt_89hpesx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/misc/eeprom/idt_89hpesx.c b/drivers/misc/eeprom/idt_89hpesx.c
index 8a4659518c33..b93b83fc3e3e 100644
--- a/drivers/misc/eeprom/idt_89hpesx.c
+++ b/drivers/misc/eeprom/idt_89hpesx.c
@@ -1163,6 +1163,7 @@ static void idt_get_fw_data(struct idt_89hpesx_dev *pdev)
 	else /* if (!fwnode_property_read_bool(node, "read-only")) */
 		pdev->eero = false;
 
+	fwnode_handle_put(fwnode);
 	dev_info(dev, "EEPROM of %d bytes found by 0x%x",
 		pdev->eesize, pdev->eeaddr);
 }
-- 
2.30.2