linux-toradex.git/drivers/mfd, branch v3.10.78

mfd: tc6393xb: Fail ohci suspend if full state restore is required

2015-01-08T17:58:15+00:00

commit 1a5fb99de4850cba710d91becfa2c65653048589 upstream.

Some boards with TC6393XB chip require full state restore during system
resume thanks to chip's VCC being cut off during suspend (Sharp SL-6000
tosa is one of them). Failing to do so would result in ohci Oops on
resume due to internal memory contentes being changed. Fail ohci suspend
on tc6393xb is full state restore is required.

Recommended workaround is to unbind tmio-ohci driver before suspend and
rebind it after resume.

Signed-off-by: Dmitry Eremin-Solenikov 
Signed-off-by: Lee Jones 
Signed-off-by: Greg Kroah-Hartman

mfd: rtsx_pcr: Fix MSI enable error handling

2014-11-14T16:47:55+00:00

commit 5152970538a5e16c03bbcb9f1c780489a795ed40 upstream.

pci_enable_msi() can return failure with both positive and negative
integers -- it returns 0 for success -- but is only tested here for
"if (ret < 0)".  This causes us to try to use MSI on the RTS5249 SD
reader in the Dell XPS 11 when enabling MSI failed, causing:

[    1.737110] rtsx_pci: probe of 0000:05:00.0 failed with error -110

Reported-by: D. Jared Dominguez 
Tested-by: D. Jared Dominguez 
Signed-off-by: Chris Ball 
Signed-off-by: Lee Jones 
Signed-off-by: Greg Kroah-Hartman

mfd: omap-usb-host: Fix improper mask use.

2014-09-17T16:03:57+00:00

commit 46de8ff8e80a6546aa3d2fdf58c6776666301a0c upstream.

single-ulpi-bypass is a flag used for older OMAP3 silicon.

The flag when set, can excite code that improperly uses the
OMAP_UHH_HOSTCONFIG_UPLI_BYPASS define to clear the corresponding bit.
Instead it clears all of the other bits disabling all of the ports in
the process.

Signed-off-by: Michael Welling 
Signed-off-by: Lee Jones 
Signed-off-by: Greg Kroah-Hartman

mfd: tps65910: Fix possible invalid pointer dereference on regmap_add_irq_chip fail

2014-05-06T14:55:28+00:00

commit 483e2dfdbc94751430e41db9973985f5b054d322 upstream.

Fixes: 4aab3fadad32 ("mfd: tps65910: Move interrupt implementation code to mfd file")

tps65910_irq_init() sets 'tps65910->chip_irq' before calling
regmap_add_irq_chip(). If the regmap_add_irq_chip() call fails in
memory allocation of regmap_irq_chip_data members then:

1. The 'tps65910->chip_irq' will still hold some value
2. 'tps65910->irq_data' will be pointing to already freed memory
   (because regmap_add_irq_chip() will free it on error)

This results in invalid memory access during driver remove because the
tps65910_irq_exit() tests whether 'tps65910->chip_irq' is not zero.

Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Lee Jones 
Signed-off-by: Greg Kroah-Hartman

mfd: max8997: Fix possible NULL pointer dereference on i2c_new_dummy error

2014-05-06T14:55:28+00:00

commit 97dc4ed3fa377ec91bb60ba98b70d645c2099384 upstream.

During probe the driver allocates dummy I2C devices for RTC, haptic and
MUIC with i2c_new_dummy() but it does not check the return value of this
calls.

In case of error (i2c_new_device(): memory allocation failure or I2C
address cannot be used) this function returns NULL which is later used
by i2c_unregister_device().

If i2c_new_dummy() fails for RTC, haptic or MUIC devices, fail also the
probe for main MFD driver.

Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Lee Jones 
Signed-off-by: Greg Kroah-Hartman

mfd: max8998: Fix possible NULL pointer dereference on i2c_new_dummy error

2014-05-06T14:55:28+00:00

commit ed26f87b9f71693a1d1ee85f5e6209601505080f upstream.

During probe the driver allocates dummy I2C device for RTC with i2c_new_dummy() but it does not check the return value of this call.

In case of error (i2c_new_device(): memory allocation failure or I2C
address cannot be used) this function returns NULL which is later used
by i2c_unregister_device().

If i2c_new_dummy() fails for RTC device, fail also the probe for
main MFD driver.

Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Lee Jones 
Signed-off-by: Greg Kroah-Hartman

mfd: max8925: Fix possible NULL pointer dereference on i2c_new_dummy error

2014-05-06T14:55:28+00:00

commit 96cf3dedc491d2f1f66cc26217f2b06b0c7b6797 upstream.

During probe the driver allocates dummy I2C devices for RTC and ADC
with i2c_new_dummy() but it does not check the return value of this
calls.

In case of error (i2c_new_device(): memory allocation failure or I2C
address cannot be used) this function returns NULL which is later used
by i2c_unregister_device().

If i2c_new_dummy() fails for RTC or ADC devices, fail also the probe
for main MFD driver.

Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Lee Jones 
Signed-off-by: Greg Kroah-Hartman

mfd: max77693: Fix possible NULL pointer dereference on i2c_new_dummy error

2014-05-06T14:55:28+00:00

commit ad09dd6a1f5d6244bd89314015af506ba7f9810a upstream.

During probe the driver allocates dummy I2C devices for MUIC and haptic
with i2c_new_dummy() but it does not check the return value of this
calls.

In case of error (i2c_new_device(): memory allocation failure or I2C
address cannot be used) this function returns NULL which is later used
by devm_regmap_init_i2c() and i2c_unregister_device().

If i2c_new_dummy() fails for MUIC or haptic devices, fail also the probe
for main MFD driver.

Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Lee Jones 
Signed-off-by: Greg Kroah-Hartman

mfd: max77686: Fix possible NULL pointer dereference on i2c_new_dummy error

2014-05-06T14:55:28+00:00

commit b9e183a1d495cd65412abe0f9df19b151716bfe7 upstream.

During probe the driver allocates dummy I2C device for RTC with
i2c_new_dummy() but it does not check the return value of this call.

In case of error (i2c_new_device(): memory allocation failure or I2C
address cannot be used) this function returns NULL which is later used
by i2c_unregister_device().

If i2c_new_dummy() fails for RTC device, fail also the probe for main
MFD driver.

Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Lee Jones 
Signed-off-by: Greg Kroah-Hartman

mfd: 88pm860x: Fix I2C device resource leak on regmap init fail

2014-05-06T14:55:28+00:00

commit a7ab1c8b261305af583ce26bb4a14f555fdaa73e upstream.

During probe the driver allocates dummy I2C device for companion chip
and then allocates a regmap for it. If regmap_init_i2c() fails then the
I2C driver (allocated with i2c_new_dummy()) is not freed and this
resource leaks.

Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Lee Jones 
Signed-off-by: Greg Kroah-Hartman