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author | Alex Frid <afrid@nvidia.com> | 2011-10-06 21:19:40 -0700 |
---|---|---|
committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:49:37 -0800 |
commit | 41179b7cfbe0309cfd0bd459639d55b49c4fde5d (patch) | |
tree | fb8351aa5880c99de8818ab2567dea04a30398a1 /arch | |
parent | c9bc7e2f81aed42ccce0dea4e52d47a4e3b684c5 (diff) |
ARM: tegra: power: Lock force_policy_max update
(cherry picked from commit dc2f416df4664f5ddeba6f14f41cd6bcd717abab)
(cherry picked from commit caa79c7d6219231d02260ae91876eff4f411dee8)
Change-Id: I29eb42c73a7e3cd3f401e8b5d44bcf3f06478c2c
Reviewed-on: http://git-master/r/61021
Tested-by: Aleksandr Frid <afrid@nvidia.com>
Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
Rebase-Id: Ref5015bb8336d8106c80fa390911ff0371b3ec57
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/mach-tegra/cpu-tegra.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm/mach-tegra/cpu-tegra.c b/arch/arm/mach-tegra/cpu-tegra.c index 1524a481f2f9..7ff2a4143280 100644 --- a/arch/arm/mach-tegra/cpu-tegra.c +++ b/arch/arm/mach-tegra/cpu-tegra.c @@ -62,11 +62,13 @@ static int force_policy_max_set(const char *arg, const struct kernel_param *kp) int ret; bool old_policy = force_policy_max; - ret = param_set_bool(arg, kp); + mutex_lock(&tegra_cpu_lock); + ret = param_set_bool(arg, kp); if ((ret == 0) && (old_policy != force_policy_max)) tegra_cpu_set_speed_cap(NULL); + mutex_unlock(&tegra_cpu_lock); return ret; } |