linux.git/drivers/mtd/maps/physmap_of.c, branch v3.8-rc2

mtd: physmap_of: error checking to prevent a NULL pointer dereference

2012-12-10T13:31:36+00:00

This patch solves a NULL pointer dereference, this may occur if the tuple
is not mappable (jumps to continue in the for-loop). Out of the loop
possible results are:
- info->list_size == 0  if no of the tuples is mappable
- info->list_size == 1
- info->list_size > 1
If no one of the supplied tuples is mappable (info->list_size == 0) and
info->cmtd will not be set. But it is used in mtd_device_parse_register, OOPS!
actually it should generate an error in this case!

Signed-off-by: Anton Prins 
Signed-off-by: Artem Bityutskiy

mtd: remove use of __devinit

2012-11-22T10:07:03+00:00

CONFIG_HOTPLUG is going away as an option so __devinit is no longer
needed.

Signed-off-by: Bill Pemberton 
Signed-off-by: Artem Bityutskiy

mtd: physmap_of: allow to specify the mtd name for retro compatiblity

2012-11-16T08:57:39+00:00

linux,mtd-name allow to specify the mtd name for retro capability with
physmap-flash drivers as boot loader pass the mtd partition via the old
device name physmap-flash.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD 
Signed-off-by: Artem Bityutskiy

mtd: physmap_of: Add "no-unaligned-direct-access" DT property

2012-09-29T14:05:55+00:00

On some platforms (e.g. MPC5200) a direct 1:1 mapping may cause
problems with JFFS2 usage, as the local bus (LPB) doesn't support
unaligned accesses as implemented in the JFFS2 code via memcpy().
By defining "no-unaligned-direct-access", the flash will not be
exposed directly to the MTD users (e.g. JFFS2) any more.

Signed-off-by: Stefan Roese 
Signed-off-by: Artem Bityutskiy 
Signed-off-by: David Woodhouse

mtd: convert drivers/mtd/* to use module_platform_driver()

2012-01-09T18:12:35+00:00

This patch converts the drivers in drivers/mtd/* to use the
module_platform_driver() macro which makes the code smaller and a bit
simpler.

Signed-off-by: Axel Lin 
Acked by: Haojian Zhuang 
Signed-off-by: Artem Bityutskiy 

Signed-off-by: David Woodhouse

mtd: physmap_of.c: use mtd_device_parse_register

2011-09-11T12:02:12+00:00

Replace custom invocations of parse_mtd_partitions and mtd_device_register
with common mtd_device_parse_register call. This would bring: standard
handling of all errors, fallback to default partitions, etc.

Signed-off-by: Dmitry Eremin-Solenikov 
Signed-off-by: Artem Bityutskiy

mtd: physmap_of: move parse_obsolete_partitions to become separate parser

2011-09-11T12:02:12+00:00

Move parse_obsolete_partitions() to ofpart.c and register it as an
ofoldpart partitions parser.

Signed-off-by: Dmitry Eremin-Solenikov 
Signed-off-by: Artem Bityutskiy

mtd: physmap_of: use ofpart through generic parsing

2011-09-11T12:02:11+00:00

Convert the driver to use ofpart partitions parsing through the generic
parse_mtd_partitions().

Signed-off-by: Dmitry Eremin-Solenikov 
Signed-off-by: Artem Bityutskiy

mtd: physmap: convert to mtd_device_register()

2011-05-25T01:15:37+00:00

Convert to mtd_device_register() and remove the CONFIG_MTD_PARTITIONS
preprocessor conditionals as partitioning is always available.

Signed-off-by: Jamie Iles 
Signed-off-by: Artem Bityutskiy 
Signed-off-by: David Woodhouse

drivercore: revert addition of of_match to struct device

2011-05-18T18:32:23+00:00

Commit b826291c, "drivercore/dt: add a match table pointer to struct
device" added an of_match pointer to struct device to cache the
of_match_table entry discovered at driver match time.  This was unsafe
because matching is not an atomic operation with probing a driver.  If
two or more drivers are attempted to be matched to a driver at the
same time, then the cached matching entry pointer could get
overwritten.

This patch reverts the of_match cache pointer and reworks all users to
call of_match_device() directly instead.

Signed-off-by: Grant Likely