From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:56552 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932303AbeB1PPi (ORCPT ); Wed, 28 Feb 2018 10:15:38 -0500 Subject: Patch "mtd: nand: brcmnand: Zero bitflip is not an error" has been added to the 4.9-stable tree To: wen.hsieh@broadcom.com, alexander.levin@microsoft.com, boris.brezillon@free-electrons.com, gregkh@linuxfoundation.org, richard@nod.at Cc: , From: Date: Wed, 28 Feb 2018 16:14:49 +0100 Message-ID: <1519830889235238@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled mtd: nand: brcmnand: Zero bitflip is not an error to the 4.9-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-nand-brcmnand-zero-bitflip-is-not-an-error.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From foo@baz Wed Feb 28 16:13:29 CET 2018 From: Albert Hsieh Date: Mon, 20 Nov 2017 11:26:26 +0800 Subject: mtd: nand: brcmnand: Zero bitflip is not an error From: Albert Hsieh [ Upstream commit e44b9a9c135727f3410e029910275f40681dc8bc ] A negative return value of brcmstb_nand_verify_erased_page() indicates a real bitflip error of an erased page, and other return values (>= 0) show the corrected bitflip number. Zero return value means no bitflip, but the current driver code treats it as an error, and eventually leads to falsely reported ECC error. Fixes: 02b88eea9f9c ("mtd: brcmnand: Add check for erased page bitflip") Signed-off-by: Albert Hsieh Acked-by: Boris Brezillon Signed-off-by: Richard Weinberger Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/mtd/nand/brcmnand/brcmnand.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/mtd/nand/brcmnand/brcmnand.c +++ b/drivers/mtd/nand/brcmnand/brcmnand.c @@ -1763,7 +1763,7 @@ try_dmaread: err = brcmstb_nand_verify_erased_page(mtd, chip, buf, addr); /* erased page bitflips corrected */ - if (err > 0) + if (err >= 0) return err; } Patches currently in stable-queue which might be from wen.hsieh@broadcom.com are queue-4.9/mtd-nand-brcmnand-zero-bitflip-is-not-an-error.patch