linux-kernel - [PATCH 5.4 248/261] mtd: rawnand: socrates: Fix the probe error path

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Message-Id: <20200619141701.774619103@linuxfoundation.org>
Date:   Fri, 19 Jun 2020 16:34:19 +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 5.4 248/261] mtd: rawnand: socrates: Fix the probe error path

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

commit 9c6c2e5cc77119ce0dacb4f9feedb73ce0354421 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 by far 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/20200519130035.1883-51-miquel.raynal@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

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

--- a/drivers/mtd/nand/raw/socrates_nand.c
+++ b/drivers/mtd/nand/raw/socrates_nand.c
@@ -169,7 +169,7 @@ static int socrates_nand_probe(struct pl
 	if (!res)
 		return res;

-	nand_release(nand_chip);
+	nand_cleanup(nand_chip);

 out:
 	iounmap(host->io_base);