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From: Nishka Dasgupta <nishkadg.linux@gmail.com>
To: miquel.raynal@bootlin.com, richard@nod.at, dwmw2@infradead.org,
	computersforpeace@gmail.com, marek.vasut@gmail.com,
	vigneshr@ti.com, linux-mtd@lists.infradead.org,
	marc.w.gonzalez@free.fr, mans@mansr.com
Cc: Nishka Dasgupta <nishkadg.linux@gmail.com>
Subject: [PATCH] mtd: rawnand: tango: Add of_node_put() before return
Date: Tue,  9 Jul 2019 22:43:16 +0530
Message-ID: <20190709171316.13451-1-nishkadg.linux@gmail.com> (raw)

Each iteration of for_each_child_of_node puts the previous node, but in
the case of a return from the middle of the loop, there is no put, thus
causing a memory leak. Hence add an of_node_put before the return.
Issue found with Coccinelle.

Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
---
 drivers/mtd/nand/raw/tango_nand.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mtd/nand/raw/tango_nand.c b/drivers/mtd/nand/raw/tango_nand.c
index b3f2cabcc7c0..9acf2de37ee0 100644
--- a/drivers/mtd/nand/raw/tango_nand.c
+++ b/drivers/mtd/nand/raw/tango_nand.c
@@ -659,6 +659,7 @@ static int tango_nand_probe(struct platform_device *pdev)
 		err = chip_init(&pdev->dev, np);
 		if (err) {
 			tango_nand_remove(pdev);
+			of_node_put(np);
 			return err;
 		}
 	}
-- 
2.19.1


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Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-09 17:13 Nishka Dasgupta [this message]
2019-07-09 18:42 ` Måns Rullgård

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