linux-stable.git/drivers/regulator/core.c, branch linux-3.8.y Linux kernel stable tree regulator: Fix memory garbage dev_err printout. 2013-04-05T16:26:16+00:00 Russ Dill Russ.Dill@ti.com 2013-02-14T12:46:33+00:00 d1c35e08072c01f77988cef266e04a0d2f165c18 commit 9c7b4e8a8ad2624106fbf690fa97ab9c8c9bfa88 upstream. commit dd8004af: 'regulator: core: Log when a device causes a voltage constraint fail', tried to print out some information about the check consumer min/max uV fixup, however, it uses a garbage pointer left over from list_for_each_entry leading to boot messages in the form: '[ 2.079890] <RANDOM ASCII>: Restricting voltage, 3735899821-4294967295uV' Because it references regulator->dev, it could potentially read memory from anywhere causing a panic. This patch instead uses rdev and the updated min/max uV values. Signed-off-by: Russ Dill <Russ.Dill@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Jonghwan Choi <jhbird.choi@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 9c7b4e8a8ad2624106fbf690fa97ab9c8c9bfa88 upstream.

commit dd8004af: 'regulator: core: Log when a device causes a voltage
constraint fail', tried to print out some information about the
check consumer min/max uV fixup, however, it uses a garbage pointer
left over from list_for_each_entry leading to boot messages in the
form:

'[    2.079890] <RANDOM ASCII>: Restricting voltage, 3735899821-4294967295uV'

Because it references regulator->dev, it could potentially read memory from
anywhere causing a panic.

This patch instead uses rdev and the updated min/max uV values.

Signed-off-by: Russ Dill <Russ.Dill@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Jonghwan Choi <jhbird.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
regulator: core: Fix comment for regulator_register() 2013-01-03T13:02:39+00:00 Axel Lin axel.lin@ingics.com 2013-01-03T13:01:47+00:00 0384618a79ccfafd05ca1538867764f7c4b7916b regulator_register() does not return 0 on success, fix the comment. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> 
regulator_register() does not return 0 on success, fix the comment.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
regulator: core: Fix continuous_voltage_range case in regulator_can_change_voltage 2012-12-24T16:30:44+00:00 Axel Lin axel.lin@ingics.com 2012-12-12T01:22:46+00:00 19280e40714c9a3c55ab47f76df110072f6cde5e Regulator drivers with continuous_voltage_range flag set allows not setting n_voltages. Thus if continuous_voltage_range is set, check the constraint range instead. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> 
Regulator drivers with continuous_voltage_range flag set allows not setting
n_voltages. Thus if continuous_voltage_range is set, check the constraint range
instead.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Merge remote-tracking branch 'regulator/topic/change' into regulator-next 2012-12-11T12:44:53+00:00 Mark Brown broonie@opensource.wolfsonmicro.com 2012-12-11T12:44:53+00:00 f3cd19c38c3453d3af766979ccdde91eeb8b4d05 






regulator: core: Fix logic to determinate if regulator can change voltage
2012-12-11T12:44:23+00:00

Axel Lin
axel.lin@ingics.com

2012-12-11T12:36:37+00:00

8a23b4e03d6873ec50f7d212de78ff01e393fc1a

Having a linear_min_sel setting means the first linear_min_sel selectors are
invalid. We need to subtract linear_min_sel when use n_voltages to determinate
if regulator can change voltage.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>





Having a linear_min_sel setting means the first linear_min_sel selectors are
invalid. We need to subtract linear_min_sel when use n_voltages to determinate
if regulator can change voltage.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>







Merge branch 'topic/min' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-change
2012-12-11T12:44:17+00:00

Mark Brown
broonie@opensource.wolfsonmicro.com

2012-12-11T12:44:17+00:00

b17fc86cc5e8fbfd1d18765f6463d1989c59f9c6












Merge remote-tracking branch 'regulator/topic/min' into regulator-next
2012-12-10T03:43:00+00:00

Mark Brown
broonie@opensource.wolfsonmicro.com

2012-12-10T03:43:00+00:00

adca48f7c61c53708a1f1ed567e0447ccb2b3b96












Merge remote-tracking branch 'regulator/topic/log' into regulator-next
2012-12-10T03:42:56+00:00

Mark Brown
broonie@opensource.wolfsonmicro.com

2012-12-10T03:42:56+00:00

bdb7e45507893f4c509c539d442ed4962ac6fa0f












Merge remote-tracking branch 'regulator/topic/hotplug' into regulator-next
2012-12-10T03:42:55+00:00

Mark Brown
broonie@opensource.wolfsonmicro.com

2012-12-10T03:42:55+00:00

1f9cc5f7716d664bfe32289ca61327be01a0a8e3












regulators: add regulator_can_change_voltage() function
2012-12-06T06:13:34+00:00

Marek Szyprowski
m.szyprowski@samsung.com

2012-12-04T14:01:01+00:00

d1e7de3007c6e34c5e6d5e1b707b5aba4a1cd57f

Introduce a regulator_can_change_voltage() function for the subsytems or
drivers which might check if applying voltage change is possible and use
special workaround code when the driver is used with fixed regulators or
regulators with disabled ability to change the voltage.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>





Introduce a regulator_can_change_voltage() function for the subsytems or
drivers which might check if applying voltage change is possible and use
special workaround code when the driver is used with fixed regulators or
regulators with disabled ability to change the voltage.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>