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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,
	linux-amlogic@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org, khilman@baylibre.com,
	liang.yang@amlogic.com
Cc: Nishka Dasgupta <nishkadg.linux@gmail.com>
Subject: [PATCH] mtd: rawnand: meson: Add of_node_put() before return
Date: Tue,  9 Jul 2019 22:46:40 +0530
Message-ID: <20190709171640.13511-1-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/meson_nand.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mtd/nand/raw/meson_nand.c b/drivers/mtd/nand/raw/meson_nand.c
index ea57ddcec41e..1b82b687e5a5 100644
--- a/drivers/mtd/nand/raw/meson_nand.c
+++ b/drivers/mtd/nand/raw/meson_nand.c
@@ -1320,6 +1320,7 @@ static int meson_nfc_nand_chips_init(struct device *dev,
 		ret = meson_nfc_nand_chip_init(dev, nfc, nand_np);
 		if (ret) {
 			meson_nfc_nand_chip_cleanup(nfc);
+			of_node_put(nand_np);
 			return ret;
 		}
 	}
-- 
2.19.1


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