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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, david regan <dregan@mail.com>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Miquel Raynal <miquel.raynal@bootlin.com>
Subject: [PATCH 4.9 01/29] mtd: rawnand: brcmnand: Fixed incorrect sub-page ECC status
Date: Mon, 28 Feb 2022 18:23:28 +0100	[thread overview]
Message-ID: <20220228172141.922269337@linuxfoundation.org> (raw)
In-Reply-To: <20220228172141.744228435@linuxfoundation.org>

From: david regan <dregan@mail.com>

commit 36415a7964711822e63695ea67fede63979054d9 upstream.

The brcmnand driver contains a bug in which if a page (example 2k byte)
is read from the parallel/ONFI NAND and within that page a subpage (512
byte) has correctable errors which is followed by a subpage with
uncorrectable errors, the page read will return the wrong status of
correctable (as opposed to the actual status of uncorrectable.)

The bug is in function brcmnand_read_by_pio where there is a check for
uncorrectable bits which will be preempted if a previous status for
correctable bits is detected.

The fix is to stop checking for bad bits only if we already have a bad
bits status.

Fixes: 27c5b17cd1b1 ("mtd: nand: add NAND driver "library" for Broadcom STB NAND controller")
Signed-off-by: david regan <dregan@mail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/trinity-478e0c09-9134-40e8-8f8c-31c371225eda-1643237024774@3c-app-mailcom-lxa02
[florian: make patch apply to 4.14, file was renamed]
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 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
@@ -1637,7 +1637,7 @@ static int brcmnand_read_by_pio(struct m
 					mtd->oobsize / trans,
 					host->hwcfg.sector_size_1k);
 
-		if (!ret) {
+		if (ret != -EBADMSG) {
 			*err_addr = brcmnand_read_reg(ctrl,
 					BRCMNAND_UNCORR_ADDR) |
 				((u64)(brcmnand_read_reg(ctrl,



  reply	other threads:[~2022-02-28 17:25 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-28 17:23 [PATCH 4.9 00/29] 4.9.304-rc1 review Greg Kroah-Hartman
2022-02-28 17:23 ` Greg Kroah-Hartman [this message]
2022-02-28 17:23 ` [PATCH 4.9 02/29] vhost/vsock: dont check owner in vhost_vsock_stop() while releasing Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 03/29] parisc/unaligned: Fix fldd and fstd unaligned handlers on 32-bit kernel Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 04/29] parisc/unaligned: Fix ldw() and stw() unalignment handlers Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 05/29] sr9700: sanity check for packet length Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 06/29] USB: zaurus: support another broken Zaurus Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 07/29] serial: 8250: fix error handling in of_platform_serial_probe() Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 08/29] serial: 8250: of: Fix mapped region size when using reg-offset property Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 09/29] net: __pskb_pull_tail() & pskb_carve_frag_list() drop_monitor friends Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 10/29] gso: do not skip outer ip header in case of ipip and net_failover Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 11/29] openvswitch: Fix setting ipv6 fields causing hw csum failure Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 12/29] drm/edid: Always set RGB444 Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 13/29] net/mlx5e: Fix wrong return value on ioctl EEPROM query failure Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 14/29] configfs: fix a race in configfs_{,un}register_subsystem() Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 15/29] RDMA/ib_srp: Fix a deadlock Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 16/29] iio: adc: men_z188_adc: Fix a resource leak in an error handling path Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 17/29] ata: pata_hpt37x: disable primary channel on HPT371 Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 18/29] Revert "USB: serial: ch341: add new Product ID for CH341A" Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 19/29] usb: gadget: rndis: add spinlock for rndis response list Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 20/29] USB: gadget: validate endpoint index for xilinx udc Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 21/29] tracefs: Set the group ownership in apply_options() not parse_options() Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 22/29] USB: serial: option: add support for DW5829e Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 23/29] USB: serial: option: add Telit LE910R1 compositions Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 24/29] usb: dwc3: gadget: Let the interrupt handler disable bottom halves Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 25/29] xhci: Prevent futile URB re-submissions due to incorrect return value Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 26/29] tty: n_gsm: fix encoding of control signal octet bit DV Greg Kroah-Hartman
2022-03-02 21:01   ` Pavel Machek
2022-02-28 17:23 ` [PATCH 4.9 27/29] tty: n_gsm: fix proper link termination after failed open Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 28/29] memblock: use kfree() to release kmalloced memblock regions Greg Kroah-Hartman
2022-02-28 17:23 ` [PATCH 4.9 29/29] fget: clarify and improve __fget_files() implementation Greg Kroah-Hartman
2022-02-28 21:24 ` [PATCH 4.9 00/29] 4.9.304-rc1 review Florian Fainelli
2022-02-28 21:43 ` Shuah Khan
2022-03-01 17:06 ` Naresh Kamboju
2022-03-01 19:09 ` Guenter Roeck
2022-03-01 19:35 ` Slade Watkins

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