Viresh Kumar 26ca869434 cpufreq: check cpufreq driver is valid and cpufreq isn't disabled in cpufreq_get() ...

cpufreq_get() can be called from external drivers which might not be aware if
cpufreq driver is registered or not. And so we should actually check if cpufreq
driver is registered or not and also if cpufreq is active or disabled, at the
beginning of cpufreq_get().

Otherwise call to lock_policy_rwsem_read() might hit BUG_ON(!policy).

Reported-and-tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

2013-09-25 03:24:02 +02:00

..

acpi-cpufreq.c

acpi-cpufreq: skip loading acpi_cpufreq after intel_pstate

2013-09-25 03:19:09 +02:00

amd_freq_sensitivity.c

cpufreq: AMD "frequency sensitivity feedback" powersave bias for ondemand governor

2013-04-10 13:19:26 +02:00

arm_big_little_dt.c

cpufreq: arm_big_little: remove device tree parsing for cpu nodes

2013-08-21 10:29:55 +01:00

arm_big_little.c

cpufreq: arm-big-little: call CPUFREQ_POSTCHANGE notfier in error cases

2013-06-24 18:18:58 +05:30

arm_big_little.h

cpufreq: ARM big LITTLE: Move cpu_to_cluster() to arm_big_little.h

2013-05-12 14:04:15 +02:00

at32ap-cpufreq.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

blackfin-cpufreq.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

cpufreq_conservative.c

cpufreq: governors: Remove duplicate check of target freq in supported range

2013-08-28 22:03:02 +02:00

cpufreq_governor.c

cpufreq: Don't use smp_processor_id() in preemptible context

2013-08-29 22:19:23 +02:00

cpufreq_governor.h

cpufreq: governor: Fix typos in comments

2013-08-28 22:04:54 +02:00

cpufreq_ondemand.c

cpufreq: governors: Remove duplicate check of target freq in supported range

2013-08-28 22:03:02 +02:00

cpufreq_performance.c

cpufreq: Clean up header files included in the core

2013-08-07 23:34:09 +02:00

cpufreq_powersave.c

cpufreq: Clean up header files included in the core

2013-08-07 23:34:09 +02:00

cpufreq_stats.c

cpufreq: Fix wrong time unit conversion

2013-09-10 02:49:46 +02:00

cpufreq_userspace.c

cpufreq: Fix minor formatting issues

2013-06-21 01:06:34 +02:00

cpufreq-cpu0.c

cpufreq: cpufreq-cpu0: assign cpu_dev correctly to cpu0 device

2013-09-19 03:53:43 +02:00

cpufreq-nforce2.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

cpufreq.c

cpufreq: check cpufreq driver is valid and cpufreq isn't disabled in cpufreq_get()

2013-09-25 03:24:02 +02:00

cris-artpec3-cpufreq.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

cris-etraxfs-cpufreq.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

davinci-cpufreq.c

cpufreq: davinci: call CPUFREQ_POSTCHANGE notfier in error cases

2013-06-24 18:18:58 +05:30

dbx500-cpufreq.c

cpufreq: delete __cpuinit usage from all cpufreq files

2013-07-14 19:36:57 -04:00

e_powersaver.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

elanfreq.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

exynos4x12-cpufreq.c

arm-soc: cleanups

2013-02-21 14:58:40 -08:00

exynos4210-cpufreq.c

arm-soc: cleanups

2013-02-21 14:58:40 -08:00

exynos5250-cpufreq.c

arm-soc: cleanups

2013-02-21 14:58:40 -08:00

exynos5440-cpufreq.c

cpufreq: exynos5440: Fix to skip when new frequency same as current

2013-08-12 12:00:18 +05:30

exynos-cpufreq.c

Merge branch 'cpufreq-fixes' of git://git.linaro.org/people/vireshk/linux into pm-cpufreq

2013-08-14 22:22:57 +02:00

exynos-cpufreq.h

cpufreq: fix EXYNOS drivers selection

2013-08-12 12:00:21 +05:30

freq_table.c

cpufreq: Clean up header files included in the core

2013-08-07 23:34:09 +02:00

gx-suspmod.c

cpufreq / gx: Fix gx_detect_chipset() __init attribute location

2013-08-14 22:24:23 +02:00

highbank-cpufreq.c

cpufreq: highbank-cpufreq: remove device tree parsing for cpu nodes

2013-08-21 10:29:54 +01:00

ia64-acpi-cpufreq.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

imx6q-cpufreq.c

cpufreq: imx6q-cpufreq: assign cpu_dev correctly to cpu0 device

2013-09-19 03:53:43 +02:00

integrator-cpufreq.c

cpufreq: integrator: move cpufreq driver to drivers/cpufreq

2013-04-08 13:02:31 +02:00

intel_pstate.c

intel_pstate: Add Haswell CPU models

2013-09-10 23:10:39 +02:00

Kconfig

cpufreq: Fix incorrect dependecies for ARM SA11xx drivers

2013-05-12 14:04:16 +02:00

Kconfig.arm

cpufreq: fix EXYNOS drivers selection

2013-08-12 12:00:21 +05:30

Kconfig.powerpc

Merge branch 'pm-cpufreq-assorted' into pm-cpufreq

2013-06-27 21:46:45 +02:00

Kconfig.x86

cpufreq: X86_AMD_FREQ_SENSITIVITY: select CPU_FREQ_TABLE

2013-06-18 13:53:11 +05:30

kirkwood-cpufreq.c

Merge branch 'cpu_of_node' of git://linux-arm.org/linux-skn into pm-cpufreq-next

2013-08-23 00:57:19 +02:00

longhaul.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

longhaul.h

cpufreq: delete __cpuinit usage from all cpufreq files

2013-07-14 19:36:57 -04:00

longrun.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

loongson2_cpufreq.c

Merge back earlier 'pm-cpufreq' material

2013-08-14 22:21:16 +02:00

Makefile

cpufreq: Remove unused APERF/MPERF support

2013-07-26 01:06:43 +02:00

maple-cpufreq.c

Merge branch 'cpu_of_node' of git://linux-arm.org/linux-skn into pm-cpufreq-next

2013-08-23 00:57:19 +02:00

omap-cpufreq.c

cpufreq: delete __cpuinit usage from all cpufreq files

2013-07-14 19:36:57 -04:00

p4-clockmod.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

pasemi-cpufreq.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

pcc-cpufreq.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

pmac32-cpufreq.c

Merge branch 'cpu_of_node' of git://linux-arm.org/linux-skn into pm-cpufreq-next

2013-08-23 00:57:19 +02:00

pmac64-cpufreq.c

Merge branch 'cpu_of_node' of git://linux-arm.org/linux-skn into pm-cpufreq-next

2013-08-23 00:57:19 +02:00

powernow-k6.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

powernow-k7.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

powernow-k7.h

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

powernow-k8.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

powernow-k8.h

cpufreq: Remove support for hardware P-state chips from powernow-k8

2012-09-09 22:05:30 +02:00

ppc_cbe_cpufreq_pervasive.c

cpufreq: powerpc/platforms/cell: move cpufreq driver to drivers/cpufreq

2013-04-10 13:19:26 +02:00

ppc_cbe_cpufreq_pmi.c

cpufreq: powerpc/platforms/cell: move cpufreq driver to drivers/cpufreq

2013-04-10 13:19:26 +02:00

ppc_cbe_cpufreq.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

ppc_cbe_cpufreq.h

cpufreq: powerpc/platforms/cell: move cpufreq driver to drivers/cpufreq

2013-04-10 13:19:26 +02:00

ppc-corenet-cpufreq.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

pxa2xx-cpufreq.c

cpufreq / pxa2xx: Fix pxa_cpufreq_init_voltages() __init attribute location

2013-08-14 22:24:23 +02:00

pxa3xx-cpufreq.c

pxa3xx-cpufreq.c: Avoid using ARRAY_AND_SIZE(e) as a function argument

2013-08-14 22:24:23 +02:00

s3c24xx-cpufreq-debugfs.c

cpufreq: s3c24xx: move cpufreq driver to drivers/cpufreq

2013-05-20 23:04:28 +09:00

s3c24xx-cpufreq.c

cpufreq / s3c24xx: Fix s3c_cpufreq_initclks() __init attribute location

2013-08-14 22:24:24 +02:00

s3c64xx-cpufreq.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

s3c2410-cpufreq.c

cpufreq: s3c24xx: move cpufreq driver to drivers/cpufreq

2013-05-20 23:04:28 +09:00

s3c2412-cpufreq.c

cpufreq: s3c24xx: move cpufreq driver to drivers/cpufreq

2013-05-20 23:04:28 +09:00

s3c2416-cpufreq.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

s3c2440-cpufreq.c

cpufreq: s3c24xx: move cpufreq driver to drivers/cpufreq

2013-05-20 23:04:28 +09:00

s5pv210-cpufreq.c

cpufreq: Notify all policy->cpus in cpufreq_notify_transition()

2013-04-02 15:24:00 +02:00

sa1100-cpufreq.c

cpufreq: sa11x0: move cpufreq driver to drivers/cpufreq

2013-04-10 13:19:24 +02:00

sa1110-cpufreq.c

cpufreq: sa11x0: move cpufreq driver to drivers/cpufreq

2013-04-10 13:19:24 +02:00

sc520_freq.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

sh-cpufreq.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

sparc-us2e-cpufreq.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

sparc-us3-cpufreq.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

spear-cpufreq.c

cpufreq: spear-cpufreq: remove device tree parsing for cpu nodes

2013-08-21 10:29:54 +01:00

speedstep-centrino.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

speedstep-ich.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

speedstep-lib.c

cpufreq: Add support for x86 cpuinfo auto loading v4

2012-01-26 16:49:06 -08:00

speedstep-lib.h

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

speedstep-smi.c

cpufreq: Drop the owner field from struct cpufreq_driver

2013-08-10 03:24:47 +02:00

tegra-cpufreq.c

cpufreq: tegra: fix the wrong clock name

2013-08-23 21:58:28 +05:30

unicore2-cpufreq.c

cpufreq: unicore2: Staticize local symbol

2013-08-14 22:24:24 +02:00