Merge 3.6-rc3 into staging-next

This picks up fixes we want in this branch to allow us to properly test.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 13 insertions, 1 deletions

diff --git a/drivers/cpuidle/coupled.c b/drivers/cpuidle/coupled.c
index 2c9bf2692232..3265844839bf 100644
--- a/drivers/cpuidle/coupled.c
+++ b/drivers/cpuidle/coupled.c
@@ -678,10 +678,22 @@ static int cpuidle_coupled_cpu_notify(struct notifier_block *nb,
         int cpu = (unsigned long)hcpu;
         struct cpuidle_device *dev;
 
+        switch (action & ~CPU_TASKS_FROZEN) {
+        case CPU_UP_PREPARE:
+        case CPU_DOWN_PREPARE:
+        case CPU_ONLINE:
+        case CPU_DEAD:
+        case CPU_UP_CANCELED:
+        case CPU_DOWN_FAILED:
+                break;
+        default:
+                return NOTIFY_OK;
+        }
+
         mutex_lock(&cpuidle_lock);
 
         dev = per_cpu(cpuidle_devices, cpu);
-        if (!dev->coupled)
+        if (!dev || !dev->coupled)
                 goto out;
 
         switch (action & ~CPU_TASKS_FROZEN) {