linux-stable.git/drivers/mtd, branch linux-2.6.38.y

mtd: return badblockbits back

2011-06-03T01:33:47+00:00

commit 26d9be11485ea8c1102c3e8eaa7667412eef4950 upstream.

In commit c7b28e25cb9beb943aead770ff14551b55fa8c79 the initialization of
the backblockbits was accidentally removed. This patch returns it back,
because otherwise some NAND drivers are broken.

This problem was reported by "Saxena, Parth " here:
http://lists.infradead.org/pipermail/linux-mtd/2011-April/035221.html

Reported-by: Parth Saxena 
Signed-off-by: Artem Bityutskiy 
Tested-by: Parth Saxena 
Acked-by: Parth Saxena 
Acked-by: Brian Norris 
Signed-off-by: David Woodhouse 
Signed-off-by: Greg Kroah-Hartman

mtd: mtdconcat: fix NAND OOB write

2011-06-03T01:33:47+00:00

commit 431e1ecabddcd7cbba237182ddf431771f98bb4c upstream.

Currently mtdconcat is broken for NAND. An attemtpt to create
JFFS2 filesystem on concatenation of several NAND devices fails
with OOB write errors. This patch fixes that problem.

Signed-off-by: Felix Radensky 
Signed-off-by: Artem Bityutskiy 
Signed-off-by: David Woodhouse 
Signed-off-by: Greg Kroah-Hartman

Merge git://git.infradead.org/users/dwmw2/mtd-2.6.38

2011-03-13T22:56:22+00:00

* git://git.infradead.org/users/dwmw2/mtd-2.6.38:
  mtd: add "platform:" prefix for platform modalias
  mtd: mtd_blkdevs: fix double free on error path
  mtd: amd76xrom: fix oops at boot when resources are not available
  mtd: fix race in cfi_cmdset_0001 driver
  mtd: jedec_probe: initialise make sector erase command variable
  mtd: jedec_probe: Change variable name from cfi_p to cfi

mtd: add "platform:" prefix for platform modalias

2011-03-11T14:20:05+00:00

Since 43cc71eed1250755986da4c0f9898f9a635cb3bf (platform: prefix MODALIAS
with "platform:"), the platform modalias is prefixed with "platform:".

Signed-off-by: Axel Lin 
Signed-off-by: Artem Bityutskiy 
Signed-off-by: David Woodhouse 
Cc: stable@kernel.org

mtd: mtd_blkdevs: fix double free on error path

2011-03-11T14:19:44+00:00

This one liner patch fixes double free that will occur if add_mtd_blktrans_dev
fails. On failure it frees the input argument, but all its users also free it
on error which is natural thing to do. Thus don't free it.

All credit for finding that bug belongs to reporters of the bug in the android bugzilla
http://code.google.com/p/android/issues/detail?id=13761

Commit message tweaked by Artem.

Signed-off-by: Maxim Levitsky 
Signed-off-by: Artem Bityutskiy 
Signed-off-by: David Woodhouse 
Cc: stable@kernel.org

mtd: amd76xrom: fix oops at boot when resources are not available

2011-03-11T14:19:09+00:00

For some unknown reasons resources needed by amd76xrom driver can be
unavailable. And instead of returning an error, the driver keeps going
and crash the kernel. This patch fixes the problem by making the driver
return -EBUSY if the resources are not available.

Commit messages tweaked by Artem.

Reported-by: Russell Whitaker 
Signed-off-by: Stanislaw Gruszka 
Signed-off-by: Artem Bityutskiy 
Signed-off-by: David Woodhouse 
Cc: stable@kernel.org

mtd: fix race in cfi_cmdset_0001 driver

2011-03-11T12:09:07+00:00

As inval_cache_and_wait_for_operation() drop and reclaim the lock
to invalidate the cache, some other thread may suspend the operation
before reaching the for(;;) loop. Therefore the loop must start with
checking the chip->state before reading status from the chip.

Signed-off-by: Joakim Tjernlund 
Acked-by: Michael Cashwell 
Acked-by: Stefan Bigler 
Signed-off-by: Artem Bityutskiy 
Signed-off-by: David Woodhouse 
Cc: stable@kernel.org

mtd: jedec_probe: initialise make sector erase command variable

2011-03-11T12:05:54+00:00

In the commit 08968041bef437ec363623cd3218c2b083537ada
 (mtd: cfi_cmdset_0002: make sector erase command variable)
introdused a field sector_erase_cmd. In the same commit initialisation
of cfi->sector_erase_cmd made in cfi_chip_setup()
(file drivers/mtd/chips/cfi_probe.c), so the CFI chip has no problem:

...
        cfi->cfi_mode = CFI_MODE_CFI;
        cfi->sector_erase_cmd = CMD(0x30);
...

But for the JEDEC chips this initialisation is not carried out,
so the JEDEC chips have sector_erase_cmd == 0.

This patch adds the missing initialisation.

Signed-off-by: Antony Pavlov 
Acked-by: Guillaume LECERF 
Signed-off-by: David Woodhouse 
CC: stable@kernel.org

mtd: jedec_probe: Change variable name from cfi_p to cfi

2011-03-11T12:05:24+00:00

In the following commit, we'll need to use the CMD() macro in order to
fix the initialisation of the sector_erase_cmd field. That requires the
local variable to be called 'cfi', so change it first in a simple patch.

Signed-off-by: Antony Pavlov 
Acked-by: Guillaume LECERF 
Signed-off-by: David Woodhouse 
CC: stable@kernel.org

workqueue, freezer: unify spelling of 'freeze' + 'able' to 'freezable'

2011-02-16T16:48:59+00:00

There are two spellings in use for 'freeze' + 'able' - 'freezable' and
'freezeable'.  The former is the more prominent one.  The latter is
mostly used by workqueue and in a few other odd places.  Unify the
spelling to 'freezable'.

Signed-off-by: Tejun Heo 
Reported-by: Alan Stern 
Acked-by: "Rafael J. Wysocki" 
Acked-by: Greg Kroah-Hartman 
Acked-by: Dmitry Torokhov 
Cc: David Woodhouse 
Cc: Alex Dubov 
Cc: "David S. Miller" 
Cc: Steven Whitehouse