THOMSON, Adam (Adam) f722013ee9 mtd: nand_base: always initialise oob_poi before writing OOB data ... In nand_do_write_ops() code it is possible for a caller to provide ops.oobbuf populated and ops.mode == MTD_OOB_AUTO, which currently means that the chip->oob_poi buffer isn't initialised to all 0xFF. The nand_fill_oob() method then carries out the task of copying the provided OOB data to oob_poi, but with MTD_OOB_AUTO it skips areas marked as unavailable by the layout struct, including the bad block marker bytes. An example of this causing issues is when the last OOB data read was from the start of a bad block where the markers are not 0xFF, and the caller wishes to write new OOB data at the beginning of another block. In this scenario the caller would provide OOB data, but nand_fill_oob() would skip the bad block marker bytes in oob_poi before copying the OOB data provided by the caller. This means that when the OOB data is written back to NAND, the block is inadvertently marked as bad without the caller knowing. This has been witnessed when using YAFFS2 where tags are stored in the OOB. To avoid this oob_poi is always initialised to 0xFF to make sure no left over data is inadvertently written back to the OOB area. Credits to Brian Norris <computersforpeace@gmail.com> for fixing this patch. Signed-off-by: Adam Thomson <adam.thomson@alcatel-lucent.com> Signed-off-by: Artem Bityutskiy <dedekind1@gmail.com> Cc: stable@kernel.org [2.6.20+]		2011-09-11 15:02:10 +03:00
..
accessibility	…
acpi	Merge branch 'battery' into release	2011-08-05 22:16:42 -04:00
amba	…
ata	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6	2011-08-02 21:17:02 -10:00
atm	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
auxdisplay	…
base	PM / Runtime: Allow _put_sync() from interrupts-disabled context	2011-08-05 21:45:20 +02:00
bcma	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2011-07-25 13:56:39 -07:00
block	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
bluetooth	…
cdrom	…
char	net: Compute protocol sequence numbers and fragment IDs using MD5.	2011-08-06 18:33:19 -07:00
clk	…
clocksource	Merge branch 'timers-clocksource-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-07-23 10:34:47 -07:00
connector	proc_fork_connector: a lockless ->real_parent usage is not safe	2011-07-28 18:26:32 -07:00
cpufreq	Merge branch 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6	2011-07-26 09:21:09 -07:00
cpuidle	cpuidle: stop depending on pm_idle	2011-08-03 19:06:37 -04:00
crypto	n2_crypto: Attach on Niagara-T3.	2011-07-28 01:30:07 -07:00
dca	…
dio	…
dma	Merge branch 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm	2011-08-10 17:37:17 -07:00
edac	Revert "EDAC: Correct Kconfig dependencies"	2011-08-11 08:58:41 -07:00
eisa	eisa/pci_eisa.c: fix BUG introduced by 005bdad7b8	2011-08-04 06:32:51 -10:00
firewire	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
firmware	Merge branch 'pstore-efi' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6	2011-08-02 21:18:39 -10:00
gpio	Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6	2011-08-01 06:13:48 -10:00
gpu	Revert "drm/i915: Try enabling RC6 by default (again)"	2011-08-05 10:56:29 +01:00
hid	Merge branches 'roccat', 'upstream' and 'wiimote' into for-linus	2011-07-22 22:47:08 +02:00
hwmon	hwmon: (ibmaem) add missing kfree	2011-08-11 10:14:18 -07:00
hwspinlock	…
i2c	i2c-eg20t : Fix the issue of Combined R/W transfer mode	2011-07-27 00:02:28 +01:00
ide	drivers/ide/cy82c693.c: Add missing pci_dev_put	2011-08-04 01:30:34 -07:00
idle	…
ieee802154	…
infiniband	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2011-07-27 13:21:40 -07:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2011-08-03 22:00:09 -10:00
iommu	…
isdn	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2011-07-28 05:58:19 -07:00
leds	arch/arm/mach-ux500/board-u5500.c: calibrate ALS input voltage	2011-07-25 20:57:15 -07:00
lguest	lguest: Fix in/out emulation	2011-07-22 14:39:51 +09:30
macintosh	drivers: fix up various ->llseek() implementations	2011-07-20 20:47:58 -04:00
mca	…
md	dm table: set flush capability based on underlying devices	2011-08-02 12:32:08 +01:00
media	Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6	2011-07-30 00:08:53 -07:00
memstick	…
message	Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6	2011-07-30 08:36:02 -10:00
mfd	mfd: Fix mismatch in twl4030 mutex lock-unlock	2011-07-31 23:28:27 +02:00
misc	mmc: cb710: fix possible pci_dev leak in cb710_pci_configure()	2011-08-13 14:50:23 -04:00
mmc	mmc: dw_mmc: Fix DDR mode support.	2011-08-13 14:50:32 -04:00
mtd	mtd: nand_base: always initialise oob_poi before writing OOB data	2011-09-11 15:02:10 +03:00
net	Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless	2011-08-11 23:09:46 -07:00
nfc	NFC: pn533: use after free in pn533_disconnect()	2011-07-26 16:27:24 -04:00
nubus	…
of	Revert "dt: add of_alias_scan and of_alias_get_id"	2011-08-04 11:26:24 +01:00
oprofile	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
parisc	…
parport	Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6	2011-07-25 23:09:27 -07:00
pci	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6	2011-08-02 21:17:02 -10:00
pcmcia	Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6	2011-07-31 06:23:08 -10:00
platform	acer-wmi: support Lenovo ideapad S205 wifi switch	2011-08-05 15:21:52 -04:00
pnp	Merge 'akpm' patch series	2011-07-25 21:00:19 -07:00
power	Merge git://git.infradead.org/battery-2.6	2011-07-31 06:24:50 -10:00
pps	…
ps3	…
ptp	…
rapidio	…
regulator	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6	2011-08-01 14:05:46 -10:00
rtc	rtc-omap: fix initialization of control register	2011-08-03 14:25:20 -10:00
s390	[S390] qdio: Use kstrtoul_from_user	2011-08-03 16:44:21 +02:00
sbus	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
scsi	Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6	2011-07-30 08:36:02 -10:00
sfi	…
sh	Merge branch 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x	2011-08-01 06:10:16 -10:00
sn	…
spi	spi/pl022: remove function cannot exit	2011-08-02 14:54:11 +01:00
ssb	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2011-07-25 13:56:39 -07:00
staging	gma500: Fix clashes with DRM updates	2011-08-09 08:34:50 -07:00
target	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2011-08-03 15:12:09 -10:00
tc	…
telephony	…
thermal	thermal: make THERMAL_HWMON implementation fully internal	2011-08-02 14:51:57 -04:00
tty	sh: Fix boot crash related to SCI	2011-08-07 15:51:45 -07:00
uio	Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6	2011-07-25 23:06:24 -07:00
usb	USB: Serial: Add PID(0xF7C0) to FTDI SIO driver for a zeitcontrol-device	2011-08-10 22:11:45 -07:00
uwb	uwb: Fix misspelling of neighbourhood in comment	2011-07-21 14:03:41 +02:00
vhost	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
video	savagedb: Fix typo causing regression in savage4 series video chip detection	2011-08-06 12:02:40 -07:00
virt	drivers/virt: add missing linux/interrupt.h to fsl_hypervisor.c	2011-07-22 09:24:39 -05:00
virtio	virtio: expose for non-virtualization users too	2011-07-23 16:20:30 +09:30
vlynq	…
w1	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
watchdog	watchdog: Cleanup WATCHDOG_CORE help text	2011-08-02 08:23:07 +00:00
xen	xen/self-balloon: Add dependency on tmem.	2011-08-03 14:34:57 -04:00
zorro	…
Kconfig	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2011-07-25 22:59:39 -07:00
Makefile	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2011-07-25 22:59:39 -07:00