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cpufreq: intel_pstate: Use locking in intel_pstate_resume()
authorRafael J. Wysocki <rafael.j.wysocki@intel.com>
Fri, 30 Dec 2016 14:56:14 +0000 (15:56 +0100)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Sat, 31 Dec 2016 20:48:42 +0000 (21:48 +0100)
commitaa439248ab71bcd2d26a01708dead4dd56616499
tree2cb143137b8826ef2717f6a13e2ba43a62aeeb96tree | snapshot (tar.gz zip)
parent366430b5c2f61a75d45b9fc00886ffff12f395abcommit | diff
cpufreq: intel_pstate: Use locking in intel_pstate_resume()

Theoretically, intel_pstate_resume() may be executed in parallel
with intel_pstate_set_policy(), if the latter is invoked via
cpufreq_update_policy() as a result of a notification, so use
intel_pstate_limits_lock in there too to avoid race conditions.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
drivers/cpufreq/intel_pstate.c diff | blob | blame | history