linux-kernel - [PATCH] mtd: nand: vf610: fix error handling in vf610_nfc

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Date:   Sat, 23 Dec 2017 00:43:14 +0300
From:   Alexey Khoroshilov <khoroshilov@...ras.ru>
To:     Stefan Agner <stefan@...er.ch>,
        Boris Brezillon <boris.brezillon@...e-electrons.com>
Cc:     Alexey Khoroshilov <khoroshilov@...ras.ru>,
        Richard Weinberger <richard@....at>,
        linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        ldv-project@...uxtesting.org
Subject: [PATCH] mtd: nand: vf610: fix error handling in vf610_nfc_probe()

vf610_nfc_probe() misses error handling of mtd_device_register().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@...ras.ru>
---
 drivers/mtd/nand/vf610_nfc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/vf610_nfc.c b/drivers/mtd/nand/vf610_nfc.c
index 8037d4b48a05..a4c181af74b3 100644
--- a/drivers/mtd/nand/vf610_nfc.c
+++ b/drivers/mtd/nand/vf610_nfc.c
@@ -782,7 +782,10 @@ static int vf610_nfc_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, mtd);
 
 	/* Register device in MTD */
-	return mtd_device_register(mtd, NULL, 0);
+	err = mtd_device_register(mtd, NULL, 0);
+	if (err)
+		goto error;
+	return 0;
 
 error:
 	of_node_put(nand_get_flash_node(chip));
-- 
2.7.4