Patch "mtd: rawnand: brcmnand: Fix ecc chunk calculation for erased page bitfips" has been added to the 4.14-stable tree

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This is a note to let you know that I've just added the patch titled

    mtd: rawnand: brcmnand: Fix ecc chunk calculation for erased page bitfips

to the 4.14-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     mtd-rawnand-brcmnand-fix-ecc-chunk-calculation-for-erased-page-bitfips.patch
and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 7f852cc1579297fd763789f8cd370639d0c654b6 Mon Sep 17 00:00:00 2001
From: Claire Lin <claire.lin@xxxxxxxxxxxx>
Date: Mon, 26 Aug 2019 15:57:56 -0400
Subject: mtd: rawnand: brcmnand: Fix ecc chunk calculation for erased page bitfips

From: Claire Lin <claire.lin@xxxxxxxxxxxx>

commit 7f852cc1579297fd763789f8cd370639d0c654b6 upstream.

In brcmstb_nand_verify_erased_page(), the ECC chunk pointer calculation
while correcting erased page bitflips is wrong, fix it.

Fixes: 02b88eea9f9c ("mtd: brcmnand: Add check for erased page bitflips")
Signed-off-by: Claire Lin <claire.lin@xxxxxxxxxxxx>
Reviewed-by: Ray Jui <ray.jui@xxxxxxxxxxxx>
Signed-off-by: Kamal Dasu <kdasu.kdev@xxxxxxxxx>
Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
Signed-off-by: Yuta Hayama <hayama@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/mtd/nand/brcmnand/brcmnand.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/mtd/nand/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/brcmnand/brcmnand.c
@@ -1753,6 +1753,7 @@ static int brcmstb_nand_verify_erased_pa
 	int bitflips = 0;
 	int page = addr >> chip->page_shift;
 	int ret;
+	void *ecc_chunk;
 
 	if (!buf) {
 		buf = chip->buffers->databuf;
@@ -1769,7 +1770,9 @@ static int brcmstb_nand_verify_erased_pa
 		return ret;
 
 	for (i = 0; i < chip->ecc.steps; i++, oob += sas) {
-		ret = nand_check_erased_ecc_chunk(buf, chip->ecc.size,
+		ecc_chunk = buf + chip->ecc.size * i;
+		ret = nand_check_erased_ecc_chunk(ecc_chunk,
+						  chip->ecc.size,
 						  oob, sas, NULL, 0,
 						  chip->ecc.strength);
 		if (ret < 0)


Patches currently in stable-queue which might be from claire.lin@xxxxxxxxxxxx are

queue-4.14/mtd-rawnand-brcmnand-fix-ecc-chunk-calculation-for-erased-page-bitfips.patch



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