Sascha Hauer 197190bc5c mtd: nand: gpmi: Fix failure when a erased page has a bitflip at BBM ... [ Upstream commit fdf2e82105 ] When erased subpages are read then the BCH decoder returns STATUS_ERASED if they are all empty, or STATUS_UNCORRECTABLE if there are bitflips. When there are bitflips, we have to set these bits again to show the upper layers a completely erased page. When a bitflip happens in the exact byte where the bad block marker is, then this byte is swapped with another byte in block_mark_swapping(). The correction code then detects a bitflip in another subpage and no longer corrects the bitflip where it really happens. Correct this behaviour by calling block_mark_swapping() after the bitflips have been corrected. In our case UBIFS failed with this bug because it expects erased pages to be really empty: UBIFS error (pid 187): ubifs_scan: corrupt empty space at LEB 36:118735 UBIFS error (pid 187): ubifs_scanned_corruption: corruption at LEB 36:118735 UBIFS error (pid 187): ubifs_scanned_corruption: first 8192 bytes from LEB 36:118735 UBIFS error (pid 187): ubifs_scan: LEB 36 scanning failed UBIFS error (pid 187): do_commit: commit failed, error -117 Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Richard Weinberger <richard@nod.at> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-03-03 10:19:41 +01:00
..
chips	mtd: cfi: enforce valid geometry configuration	2018-02-25 11:03:46 +01:00
devices	MTD updates for 4.4-rc1:	2015-11-06 11:50:24 -08:00
lpddr
maps	mtd: maps: add __init attribute	2018-02-25 11:03:44 +01:00
nand	mtd: nand: gpmi: Fix failure when a erased page has a bitflip at BBM	2018-03-03 10:19:41 +01:00
onenand	mtd: onenand: fix deadlock in onenand_block_markbad	2016-04-12 09:09:05 -07:00
spi-nor	mtd: spi-nor: fix spansion quad enable	2017-06-29 12:48:52 +02:00
tests
ubi	ubi: block: Fix locking for idr_alloc/idr_remove	2018-02-16 20:09:41 +01:00
afs.c
ar7part.c
bcm47xxpart.c	mtd: bcm47xxpart: don't fail because of bit-flips	2017-07-05 14:37:18 +02:00
bcm63xxpart.c
cmdlinepart.c
ftl.c
inftlcore.c
inftlmount.c
Kconfig
Makefile
mtd_blkdevs.c
mtdblock_ro.c
mtdblock.c
mtdchar.c
mtdconcat.c
mtdcore.c	mtd: fix cmdlinepart parser, early naming for auto-filled MTD	2016-01-04 10:54:18 -08:00
mtdcore.h
mtdoops.c
mtdpart.c
mtdsuper.c
mtdswap.c
nftlcore.c
nftlmount.c
ofpart.c	doc: dt: mtd: partitions: add compatible property to "partitions" node	2015-12-08 17:10:20 -08:00
redboot.c
rfd_ftl.c
sm_ftl.c
sm_ftl.h
ssfdc.c