linux-stable.git/drivers/memory, branch v4.9.273

memory: gpmc: fix out of bounds read and dereference on gpmc_cs[]

2021-05-22T08:40:22+00:00

[ Upstream commit e004c3e67b6459c99285b18366a71af467d869f5 ]

Currently the array gpmc_cs is indexed by cs before it cs is range checked
and the pointer read from this out-of-index read is dereferenced. Fix this
by performing the range check on cs before the read and the following
pointer dereference.

Addresses-Coverity: ("Negative array index read")
Fixes: 9ed7a776eb50 ("ARM: OMAP2+: Fix support for multiple devices on a GPMC chip select")
Signed-off-by: Colin Ian King 
Reviewed-by: Tony Lindgren 
Link: https://lore.kernel.org/r/20210223193821.17232-1-colin.king@canonical.com
Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Sasha Levin

memory: emif: Remove bogus debugfs error handling

2020-11-10T09:23:55+00:00

[ Upstream commit fd22781648080cc400772b3c68aa6b059d2d5420 ]

Callers are generally not supposed to check the return values from
debugfs functions.  Debugfs functions never return NULL so this error
handling will never trigger.  (Historically debugfs functions used to
return a mix of NULL and error pointers but it was eventually deemed too
complicated for something which wasn't intended to be used in normal
situations).

Delete all the error handling.

Signed-off-by: Dan Carpenter 
Acked-by: Santosh Shilimkar 
Link: https://lore.kernel.org/r/20200826113759.GF393664@mwanda
Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Sasha Levin

memory: fsl-corenet-cf: Fix handling of platform_get_irq() error

2020-10-29T08:05:40+00:00

[ Upstream commit dd85345abca60a8916617e8d75c0f9ce334336dd ]

platform_get_irq() returns -ERRNO on error.  In such case comparison
to 0 would pass the check.

Fixes: 54afbec0d57f ("memory: Freescale CoreNet Coherency Fabric error reporting driver")
Signed-off-by: Krzysztof Kozlowski 
Link: https://lore.kernel.org/r/20200827073315.29351-1-krzk@kernel.org
Signed-off-by: Sasha Levin

memory: omap-gpmc: Fix a couple off by ones

2020-10-29T08:05:40+00:00

[ Upstream commit 4c54228ac8fd55044195825873c50a524131fa53 ]

These comparisons should be >= instead of > to prevent reading one
element beyond the end of the gpmc_cs[] array.

Fixes: cdd6928c589a ("ARM: OMAP2+: Add device-tree support for NOR flash")
Fixes: f37e4580c409 ("ARM: OMAP2: Dynamic allocator for GPMC memory space")
Signed-off-by: Dan Carpenter 
Acked-by: Roger Quadros 
Link: https://lore.kernel.org/r/20200825104707.GB278587@mwanda
Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Sasha Levin

memory: tegra: Fix integer overflow on tick value calculation

2019-05-25T16:26:49+00:00

commit b906c056b6023c390f18347169071193fda57dde upstream.

Multiplying the Memory Controller clock rate by the tick count results
in an integer overflow and in result the truncated tick value is being
programmed into hardware, such that the GR3D memory client performance is
reduced by two times.

Cc: stable 
Signed-off-by: Dmitry Osipenko 
Signed-off-by: Thierry Reding 
Signed-off-by: Greg Kroah-Hartman

memory: tegra: Apply interrupts mask per SoC

2018-08-03T05:55:24+00:00

[ Upstream commit 1c74d5c0de0c2cc29fef97a19251da2ad6f579bd ]

Currently we are enabling handling of interrupts specific to Tegra124+
which happen to overlap with previous generations. Let's specify
interrupts mask per SoC generation for consistency and in a preparation
of squashing of Tegra20 driver into the common one that will enable
handling of GART faults which may be undesirable by newer generations.

Signed-off-by: Dmitry Osipenko 
Signed-off-by: Thierry Reding 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

memory: tegra: Do not handle spurious interrupts

2018-08-03T05:55:24+00:00

[ Upstream commit bf3fbdfbec947cdd04b2f2c4bce11534c8786eee ]

The ISR reads interrupts-enable mask, but doesn't utilize it. Apply the
mask to the interrupt status and don't handle interrupts that MC driver
haven't asked for. Kernel would disable spurious MC IRQ and report the
error. This would happen only in a case of a very severe bug.

Signed-off-by: Dmitry Osipenko 
Signed-off-by: Thierry Reding 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

ARM: OMAP2+: gpmc-onenand: propagate error on initialization failure

2017-12-14T08:28:16+00:00

[ Upstream commit 7807e086a2d1f69cc1a57958cac04fea79fc2112 ]

gpmc_probe_onenand_child returns success even on gpmc_onenand_init
failure. Fix that.

Signed-off-by: Ladislav Michl 
Acked-by: Roger Quadros 
Signed-off-by: Tony Lindgren 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

memory/atmel-ebi: Fix ns <-> cycles conversions

2017-03-15T02:02:45+00:00

commit ee194289502a6901cc77dc9a893bf2afd351ac5e upstream.

at91sam9_ebi_get_config() is incorrectly converting timings in clock
cycles into timings in nanoseconds by multiplying the cycle values by
the clk rate instead of the clk period.

at91sam9_ebi_xslate_config() has the same problem for the
tdf_ns -> tdf_cycles conversion.

Signed-off-by: Boris Brezillon 
Reported-by: Chris Leahy 
Fixes: 6a4ec4cd0888 ("memory: add Atmel EBI (External Bus Interface) driver")
Signed-off-by: Alexandre Belloni 
Signed-off-by: Greg Kroah-Hartman

Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2016-10-08T04:23:40+00:00

Pull ARM SoC driver updates from Arnd Bergmann:
 "Driver updates for ARM SoCs, including a couple of newly added
  drivers:

   - The Qualcomm external bus interface 2 (EBI2), used in some of their
     mobile phone chips for connecting flash memory, LCD displays or
     other peripherals

   - Secure monitor firmware for Amlogic SoCs, and an NVMEM driver for
     the EFUSE based on that firmware interface.

   - Perf support for the AppliedMicro X-Gene performance monitor unit

   - Reset driver for STMicroelectronics STM32

   - Reset driver for SocioNext UniPhier SoCs

  Aside from these, there are minor updates to SoC-specific bus,
  clocksource, firmware, pinctrl, reset, rtc and pmic drivers"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (50 commits)
  bus: qcom-ebi2: depend on HAS_IOMEM
  pinctrl: mvebu: orion5x: Generalise mv88f5181l support for 88f5181
  clk: mvebu: Add clk support for the orion5x SoC mv88f5181
  dt-bindings: EXYNOS: Add Exynos5433 PMU compatible
  clocksource: exynos_mct: Add the support for ARM64
  perf: xgene: Add APM X-Gene SoC Performance Monitoring Unit driver
  Documentation: Add documentation for APM X-Gene SoC PMU DTS binding
  MAINTAINERS: Add entry for APM X-Gene SoC PMU driver
  bus: qcom: add EBI2 driver
  bus: qcom: add EBI2 device tree bindings
  rtc: rtc-pm8xxx: Add support for pm8018 rtc
  nvmem: amlogic: Add Amlogic Meson EFUSE driver
  firmware: Amlogic: Add secure monitor driver
  soc: qcom: smd: Reset rx tail rather than tx
  memory: atmel-sdramc: fix a possible NULL dereference
  reset: hi6220: allow to compile test driver on other architectures
  reset: zynq: add driver Kconfig option
  reset: sunxi: add driver Kconfig option
  reset: stm32: add driver Kconfig option
  reset: socfpga: add driver Kconfig option
  ...