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authorAkshay Adiga <akshay.adiga@linux.vnet.ibm.com>2016-11-14 14:59:27 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-11-14 23:32:31 +0300
commitc9a81e6864d48f81797397bbd65d299bf20c6148 (patch)
tree6a0c091f2d23f42574fa25146c66efb08b96747c /drivers/cpufreq/powernv-cpufreq.c
parent7f7a516ee30a931fa2d257b39f5ef7b9196c56fc (diff)
downloadlinux-c9a81e6864d48f81797397bbd65d299bf20c6148.tar.xz
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: 20b15b766354 (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>
Diffstat (limited to 'drivers/cpufreq/powernv-cpufreq.c')
-rw-r--r--drivers/cpufreq/powernv-cpufreq.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c
index c82304b7a4c0..c5c5bc35eece 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 {