Commit 44295af5 authored by Sanjay Chandrashekara's avatar Sanjay Chandrashekara Committed by Rafael J. Wysocki
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cpufreq: use correct unit when verify cur freq 



cpufreq_verify_current_freq checks() if the frequency returned by
the hardware has a slight delta with the valid frequency value
last set and returns "policy->cur" if the delta is within "1 MHz".
In the comparison, "policy->cur" is in "kHz" but it's compared
against HZ_PER_MHZ. So, the comparison range becomes "1 GHz".

Fix this by comparing against KHZ_PER_MHZ instead of HZ_PER_MHZ.

Fixes: f55ae08c ("cpufreq: Avoid unnecessary frequency updates due to mismatch")
Signed-off-by: default avatarSanjay Chandrashekara <sanjayc@nvidia.com>
[ sumit gupta: Commit message update ]
Signed-off-by: default avatarSumit Gupta <sumitg@nvidia.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 68495221

drivers/cpufreq/cpufreq.c

+1 −1
Original line number Diff line number Diff line
@@ -1732,7 +1732,7 @@ static unsigned int cpufreq_verify_current_freq(struct cpufreq_policy *policy, b 
		 * MHz. In such cases it is better to avoid getting into

		 * unnecessary frequency updates.

		 */

		if (abs(policy->cur - new_freq) < HZ_PER_MHZ)

		if (abs(policy->cur - new_freq) < KHZ_PER_MHZ)

			return policy->cur;



		cpufreq_out_of_sync(policy, new_freq);