linux-kernel - [PATCH v2 3/5] memory: renesas-rpc-if: Fix a reference leak in rpcif

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Message-Id: <20201126191146.8753-4-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date:   Thu, 26 Nov 2020 19:11:44 +0000
From:   Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
To:     Sergei Shtylyov <sergei.shtylyov@...il.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Jiri Kosina <trivial@...nel.org>,
        Mark Brown <broonie@...nel.org>,
        linux-renesas-soc@...r.kernel.org, Pavel Machek <pavel@...x.de>,
        Geert Uytterhoeven <geert+renesas@...der.be>
Cc:     linux-kernel@...r.kernel.org,
        Prabhakar <prabhakar.csengg@...il.com>,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
        stable@...r.kernel.org
Subject: [PATCH v2 3/5] memory: renesas-rpc-if: Fix a reference leak in rpcif_probe()

Release the node reference by calling of_node_put(flash) in the probe.

Fixes: ca7d8b980b67f ("memory: add Renesas RPC-IF driver")
Reported-by: Pavel Machek <pavel@...x.de>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Cc: stable@...r.kernel.org
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@...il.com>
---
 drivers/memory/renesas-rpc-if.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/memory/renesas-rpc-if.c b/drivers/memory/renesas-rpc-if.c
index a8d0ba368625..da0fdb4c7595 100644
--- a/drivers/memory/renesas-rpc-if.c
+++ b/drivers/memory/renesas-rpc-if.c
@@ -561,9 +561,11 @@ static int rpcif_probe(struct platform_device *pdev)
 	} else if (of_device_is_compatible(flash, "cfi-flash")) {
 		name = "rpc-if-hyperflash";
 	} else	{
+		of_node_put(flash);
 		dev_warn(&pdev->dev, "unknown flash type\n");
 		return -ENODEV;
 	}
+	of_node_put(flash);
 
 	vdev = platform_device_alloc(name, pdev->id);
 	if (!vdev)
-- 
2.25.1