kernel/linux.git/drivers/base/regmap/regmap.c, branch v4.4.151

regmap: Fix reversed bounds check in regmap_raw_write()

2018-04-24T07:32:06+00:00

commit f00e71091ab92eba52122332586c6ecaa9cd1a56 upstream. We're supposed to be checking that "val_len" is not too large but instead we check if it is smaller than the max. The only function affected would be regmap_i2c_smbus_i2c_write() in drivers/base/regmap/regmap-i2c.c. Strangely that function has its own limit check which returns an error if (count >= I2C_SMBUS_BLOCK_MAX) so it doesn't look like it has ever been able to do anything except return an error. Fixes: c335931ed9d2 ("regmap: Add raw_write/read checks for max_raw_write/read sizes") Signed-off-by: Dan Carpenter Signed-off-by: Mark Brown Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman

Merge remote-tracking branches 'regmap/topic/atomic', 'regmap/topic/debugfs' and 'regmap/topic/irq-hdr' into regmap-next

2015-10-12T18:25:07+00:00

regmap: Allow installing custom reg_update_bits function

2015-10-06T15:12:34+00:00

This commit allows installing a custom reg_update_bits function for cases where the hardware provides a mechanism to set or clear register bits without a read/modify/write cycle. Such is the case with the Microchip ENCX24J600. If a custom reg_update_bits function is provided, it will only be used against volatile registers. Signed-off-by: Jon Ringle Signed-off-by: Mark Brown

regmap: Allocate buffers with GFP_ATOMIC when fast_io == true

2015-09-14T18:49:26+00:00

If a regmap is using fast_io, allocate the scratch buffer in regmap_bulk_write() with GFP_ATOMIC instead of GFP_KERNEL. Otherwise we may schedule while atomic. Reported-by: Abhijeet Dharmapurikar Signed-off-by: Stephen Boyd Signed-off-by: Mark Brown

Merge remote-tracking branches 'regmap/topic/lockdep' and 'regmap/topic/seq-delay' into regmap-next

2015-09-04T16:22:10+00:00

Merge remote-tracking branches 'regmap/topic/debugfs' and 'regmap/topic/force-update' into regmap-next

2015-09-04T16:22:09+00:00

Merge remote-tracking branch 'regmap/topic/core' into regmap-next

2015-09-04T16:22:08+00:00

Merge remote-tracking branch 'regmap/fix/raw' into regmap-linus

2015-09-04T16:22:07+00:00

Merge branch 'topic/smbus-block' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap into regmap-core

2015-09-04T16:16:39+00:00

regmap: fix a NULL pointer dereference in __regmap_init

2015-08-31T10:38:36+00:00

__regmap_init() may receive a NULL `struct regmap_bus *bus' pointer, for example, from snd_hdac_regmap_init(), and it make sure that it does not NULL deference `bus`, except around ->max_raw_read and ->max_raw_write initialisation. Add missing check. Signed-off-by: Sergey Senozhatsky Signed-off-by: Mark Brown