linux-kernel - [PATCH 5.4 246/261] mtd: rawnand: xway: Fix the probe error path

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Message-Id: <20200619141701.672214068@linuxfoundation.org>
Date:   Fri, 19 Jun 2020 16:34:17 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Miquel Raynal <miquel.raynal@...tlin.com>
Subject: [PATCH 5.4 246/261] mtd: rawnand: xway: Fix the probe error path

From: Miquel Raynal <miquel.raynal@...tlin.com>

commit 34531be5e804a8e1abf314a6c3a19fe342e4a154 upstream.

nand_release() is supposed be called after MTD device registration.
Here, only nand_scan() happened, so use nand_cleanup() instead.

There is no real Fixes tag applying here as the use of nand_release()
in this driver predates the introduction of nand_cleanup() in
commit d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
which makes this change possible. However, pointing this commit as the
culprit for backporting purposes makes sense even if this commit is not
introducing any bug.

Fixes: d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com>
Cc: stable@...r.kernel.org
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-61-miquel.raynal@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/mtd/nand/raw/xway_nand.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/mtd/nand/raw/xway_nand.c
+++ b/drivers/mtd/nand/raw/xway_nand.c
@@ -210,7 +210,7 @@ static int xway_nand_probe(struct platfo

 	err = mtd_device_register(mtd, NULL, 0);
 	if (err)
-		nand_release(&data->chip);
+		nand_cleanup(&data->chip);

 	return err;
 }