kernel_optimize_test/drivers/mtd
david regan a176d559e8 mtd: rawnand: brcmnand: Fixed incorrect sub-page ECC status
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: 27c5b17cd1 ("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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-23 12:01:04 +01:00
..
chips mtd: fixup CFI on ixp4xx 2022-01-20 09:17:52 +01:00
devices
hyperbus mtd: hyperbus: rpc-if: fix bug in rpcif_hb_remove 2022-01-27 10:53:50 +01:00
lpddr
maps mtd: fixup CFI on ixp4xx 2022-01-20 09:17:52 +01:00
nand mtd: rawnand: brcmnand: Fixed incorrect sub-page ECC status 2022-02-23 12:01:04 +01:00
parsers
spi-nor mtd: spi-nor: hisi-sfc: Remove excessive clk_disable_unprepare() 2021-11-18 14:04:23 +01:00
tests
ubi
ftl.c
inftlcore.c
inftlmount.c
Kconfig
Makefile
mtd_blkdevs.c
mtdblock_ro.c
mtdblock.c
mtdchar.c
mtdconcat.c mtd: mtdconcat: Check _read, _write callbacks existence before assignment 2021-09-22 12:28:03 +02:00
mtdcore.c mtd: core: don't remove debugfs directory if device is in use 2021-11-18 14:04:23 +01:00
mtdcore.h
mtdoops.c
mtdpart.c mtd: Fixed breaking list in __mtd_del_partition. 2022-01-27 10:53:41 +01:00
mtdpstore.c
mtdsuper.c
mtdswap.c
nftlcore.c
nftlmount.c
rfd_ftl.c
sm_ftl.c
sm_ftl.h
ssfdc.c