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authorRichard Cochran <rcochran@linutronix.de>2016-03-11 09:43:07 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-03-18 01:49:01 +0100
commitc75361c0b08a59d3c9863a5a673ae039d5118c35 (patch)
treed406a57cfcbdf87374400d333f28dc47b064db05 /crypto/md4.c
parent4fec7ad5f637159525265a45f66482cf8817b45f (diff)
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cpufreq: Make cpufreq_quick_get() safe to call
The function, cpufreq_quick_get, accesses the global 'cpufreq_driver' and its fields without taking the associated lock, cpufreq_driver_lock. Without the locking, nothing guarantees that 'cpufreq_driver' remains consistent during the call. This patch fixes the issue by taking the lock before accessing the data structure. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'crypto/md4.c')
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