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Commit c9a81e68 authored by Akshay Adiga's avatar Akshay Adiga Committed by Rafael J. Wysocki
Browse files

cpufreq: powernv: Fix uninitialized lpstate_idx in gpstates_timer_handler() 



lpstate_idx remains uninitialized in the case when elapsed_time
is greater than MAX_RAMP_DOWN_TIME.  At the end of rampdown the
global pstate should be equal to the local pstate.

Fixes: 20b15b76 (cpufreq: powernv: Use PMCR to verify global and localpstate)
Reported-by: default avatarStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: default avatarAkshay Adiga <akshay.adiga@linux.vnet.ibm.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 7f7a516e

drivers/cpufreq/powernv-cpufreq.c

+1 −0
Original line number Diff line number Diff line
@@ -624,6 +624,7 @@ void gpstate_timer_handler(unsigned long data) 


	if (gpstates->elapsed_time > MAX_RAMP_DOWN_TIME) {

		gpstate_idx = pstate_to_idx(freq_data.pstate_id);

		lpstate_idx = gpstate_idx;

		reset_gpstates(policy);

		gpstates->highest_lpstate_idx = gpstate_idx;

	} else {