Sudeep Holla 784ce43a54 firmware: arm_scmi: fix divide by zero when sustained_perf_level is zero ...

[ Upstream commit 96d529bac5 ]

Firmware can provide zero as values for sustained performance level and
corresponding sustained frequency in kHz in order to hide the actual
frequencies and provide only abstract values. It may endup with divide
by zero scenario resulting in kernel panic.

Let's set the multiplication factor to one if either one or both of them
(sustained_perf_level and sustained_freq) are set to zero.

Fixes: a9e3fbfaa0 ("firmware: arm_scmi: add initial support for performance protocol")
Reported-by: Ionela Voinescu <ionela.voinescu@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-10-10 08:55:57 +02:00

..

arm_scmi

firmware: arm_scmi: fix divide by zero when sustained_perf_level is zero

2018-10-10 08:55:57 +02:00

broadcom

firmware: bcm47xx_nvram: Support small (0x6000 B) NVRAM partitions

2018-04-23 16:39:35 +01:00

efi

efi/esrt: Only call efi_mem_reserve() for boot services memory

2018-09-26 08:39:37 +02:00

google

firmware: vpd: Fix section enabled flag on vpd_section_destroy

2018-09-19 22:41:27 +02:00

meson

firmware: meson-sm: rework meson_sm_init to use module_platform_driver_probe

2018-03-07 17:33:52 -08:00

tegra

firmware: tegra: adjust tested variable

2018-03-08 14:43:13 +01:00

arm_scpi.c

treewide: devm_kzalloc() -> devm_kcalloc()

2018-06-12 16:19:22 -07:00

arm_sdei.c

firmware: arm_sdei: Fix return value check in sdei_present_dt()

2018-01-15 18:16:59 +00:00

dcdbas.c

platform/x86: Fix dell driver init order

2018-03-14 11:05:53 -07:00

dcdbas.h

…

dell_rbu.c

treewide: kzalloc() -> kcalloc()

2018-06-12 16:19:22 -07:00

dmi_scan.c

firmware: dmi: Add access to the SKU ID string

2018-06-17 14:09:42 +02:00

dmi-id.c

firmware: dmi: Add access to the SKU ID string

2018-06-17 14:09:42 +02:00

dmi-sysfs.c

firmware: dmi: handle missing DMI data gracefully

2018-02-03 11:25:20 +01:00

edd.c

edd: don't spam log if no EDD information is present

2018-03-27 09:51:23 +02:00

iscsi_ibft_find.c

…

iscsi_ibft.c

ibft: Deprecate pci_get_bus_and_slot()

2018-01-11 17:26:55 -06:00

Kconfig

firmware: arm_scmi: add device power domain support using genpd

2018-02-28 16:37:57 +00:00

Makefile

firmware: arm_scmi: add basic driver infrastructure for SCMI

2018-02-28 16:37:57 +00:00

memmap.c

…

pcdp.c

…

pcdp.h

…

psci_checker.c

drivers: psci: remove cluster terminology and dependency on physical_package_id

2018-01-17 12:59:33 +01:00

psci.c

firmware/psci: Expose SMCCC version through psci_ops

2018-02-06 22:54:11 +00:00

qcom_scm-32.c

firmware: qcom: scm: Fix crash in qcom_scm_call_atomic1()

2018-05-24 22:36:45 -05:00

qcom_scm-64.c

…

qcom_scm.c

firmware: qcom: scm: Add ipq4019 soc compatible

2018-04-25 00:10:33 -05:00

qcom_scm.h

…

qemu_fw_cfg.c

fw_cfg: write vmcoreinfo details

2018-03-20 03:17:41 +02:00

raspberrypi.c

…

scpi_pm_domain.c

…

ti_sci.c

Merge tag 'overflow-v4.18-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

2018-06-12 18:28:00 -07:00

ti_sci.h

firmware: ti_sci: Switch to SPDX Licensing

2018-05-04 23:10:23 -07:00