linux-kernel - [PATCH 4.4 10/20] mtd: rawnand: tmio: Fix the probe error path

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Date:   Fri,  9 Apr 2021 11:53:16 +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>,
        Sudip Mukherjee <sudipm.mukherjee@...il.com>
Subject: [PATCH 4.4 10/20] mtd: rawnand: tmio: Fix the probe error path

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

commit 75e9a330a9bd48f97a55a08000236084fe3dae56 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/20200519130035.1883-57-miquel.raynal@bootlin.com
[sudip: manual backport to old file]
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/mtd/nand/tmio_nand.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/mtd/nand/tmio_nand.c
+++ b/drivers/mtd/nand/tmio_nand.c
@@ -445,7 +445,7 @@ static int tmio_probe(struct platform_de
 	if (!retval)
 		return retval;
 
-	nand_release(mtd);
+	nand_cleanup(nand_chip);
 
 err_irq:
 	tmio_hw_stop(dev, tmio);