linux-kernel - [PATCH AUTOSEL for 4.9 088/293] NFC: nfcmrvl_uart: fix device-node leak during probe

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Date:   Mon, 9 Apr 2018 00:24:03 +0000
From:   Sasha Levin <Alexander.Levin@...rosoft.com>
To:     "stable@...r.kernel.org" <stable@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     Johan Hovold <johan@...nel.org>,
        Vincent Cuissard <cuissard@...vell.com>,
        Samuel Ortiz <sameo@...ux.intel.com>,
        Sasha Levin <Alexander.Levin@...rosoft.com>
Subject: [PATCH AUTOSEL for 4.9 088/293] NFC: nfcmrvl_uart: fix device-node
 leak during probe

From: Johan Hovold <johan@...nel.org>

[ Upstream commit d0607aa4aee88cb097b694caa619e68f1e0a39c6 ]

Make sure to release the device-node reference when done parsing the
node.

Fixes: e097dc624f78 ("NFC: nfcmrvl: add UART driver")
Cc: Vincent Cuissard <cuissard@...vell.com>
Signed-off-by: Johan Hovold <johan@...nel.org>
Signed-off-by: Samuel Ortiz <sameo@...ux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
---
 drivers/nfc/nfcmrvl/uart.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/nfc/nfcmrvl/uart.c b/drivers/nfc/nfcmrvl/uart.c
index 6c0c301611c4..91162f8e0366 100644
--- a/drivers/nfc/nfcmrvl/uart.c
+++ b/drivers/nfc/nfcmrvl/uart.c
@@ -84,6 +84,7 @@ static int nfcmrvl_uart_parse_dt(struct device_node *node,
 	ret = nfcmrvl_parse_dt(matched_node, pdata);
 	if (ret < 0) {
 		pr_err("Failed to get generic entries\n");
+		of_node_put(matched_node);
 		return ret;
 	}
 
@@ -97,6 +98,8 @@ static int nfcmrvl_uart_parse_dt(struct device_node *node,
 	else
 		pdata->break_control = 0;
 
+	of_node_put(matched_node);
+
 	return 0;
 }
 
-- 
2.15.1