[PATCH -next] powernv: cpufreq: Fix uninitialized lpstate_idx in gpstates_timer_handler

[Akshay Adiga]

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

Fixes: 20b15b766354 ("cpufreq: powernv: Use PMCR to verify global and
localpstate")
Reported-by: Stephen Rothwell <s...@canb.auug.org.au>
Signed-off-by: Akshay Adiga <akshay.ad...@linux.vnet.ibm.com>
---
 drivers/cpufreq/powernv-cpufreq.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/cpufreq/powernv-cpufreq.c 
b/drivers/cpufreq/powernv-cpufreq.c
index c82304b..c5c5bc3 100644
--- a/drivers/cpufreq/powernv-cpufreq.c
+++ b/drivers/cpufreq/powernv-cpufreq.c
@@ -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 {
-- 
2.5.5