linux-kernel - [PATCH 4.20 028/145] mtd: rawnand: Fix JEDEC detection

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Message-Id: <20190107104440.986237906@linuxfoundation.org>
Date:   Mon,  7 Jan 2019 13:31:05 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Boris Brezillon <boris.brezillon@...tlin.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>
Subject: [PATCH 4.20 028/145] mtd: rawnand: Fix JEDEC detection

4.20-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Boris Brezillon <boris.brezillon@...tlin.com>

commit b637ef779575a977068025f842ecd480a9671f3f upstream.

nand_jedec_detect() should return 1 when the PARAM page parsing
succeeds, otherwise the core considers JEDEC detection failed and falls
back to ID-based detection.

Fixes: 480139d9229e ("mtd: rawnand: get rid of the JEDEC parameter page in nand_chip")
Cc: <stable@...r.kernel.org>
Signed-off-by: Boris Brezillon <boris.brezillon@...tlin.com>
Acked-by: Miquel Raynal <miquel.raynal@...tlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/mtd/nand/raw/nand_jedec.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/mtd/nand/raw/nand_jedec.c
+++ b/drivers/mtd/nand/raw/nand_jedec.c
@@ -107,6 +107,8 @@ int nand_jedec_detect(struct nand_chip *
 		pr_warn("Invalid codeword size\n");
 	}
 
+	ret = 1;
+
 free_jedec_param_page:
 	kfree(p);
 	return ret;