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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: 20b15b7663 (cpufreq: powernv: Use PMCR to verify global and localpstate)
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Akshay Adiga <akshay.adiga@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Akshay Adiga 2016-11-14 17:29:27 +05:30 committed by Rafael J. Wysocki
parent 7f7a516ee3
commit c9a81e6864
1 changed files with 1 additions and 0 deletions
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drivers/cpufreq/powernv-cpufreq.c
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@ -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 {