[PATCH] x86 kernel crash fix when thermal interrupt called

platform_thermal_package_notify can be called while initialization not
complete. In this case pkg_temp_thermal_threshold_work not inited and we got
kernel crash:
[   86.158612] kernel BUG at kernel/time/timer.c:973!
[   86.187998] invalid opcode: 0000 [#1] PREEMPT SMP
...
[   86.451489] CPU: 0 PID: 4025 Comm: modprobe Tainted: G     U  W
4.1.6-netup-iptv-1.12.0+ #8
...
[   87.162383] Call Trace:
[   87.177624]  <IRQ>
[   87.189170]  [<ffffffff8106964a>] __queue_delayed_work+0x12a/0x160
[   87.228490]  [<ffffffff810696c5>] queue_delayed_work_on+0x45/0x80
[   87.265525]  [<ffffffffa05880d7>]
pkg_temp_thermal_platform_thermal_notify+0xb7/0x110 [x86_pkg_temp_thermal]
[   87.324973]  [<ffffffff8102f201>] intel_thermal_interrupt+0x201/0x240
[   87.364138]  [<ffffffff8102f25b>] smp_thermal_interrupt+0x1b/0x40
[   87.401221]  [<ffffffff81ebcf00>] thermal_interrupt+0x70/0x80

Signed-off-by: Abylay Ospan <redacted>
---
 drivers/thermal/x86_pkg_temp_thermal.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/thermal/x86_pkg_temp_thermal.c b/drivers/thermal/x86_pkg_temp_thermal.c
index 50d1d2c..e78c7c8 100644
--- a/drivers/thermal/x86_pkg_temp_thermal.c
+++ b/drivers/thermal/x86_pkg_temp_thermal.c

@@ -585,10 +585,6 @@ static int __init pkg_temp_thermal_init(void)
 		return -ENODEV;
 
 	spin_lock_init(&pkg_work_lock);
-	platform_thermal_package_notify =
-			pkg_temp_thermal_platform_thermal_notify;
-	platform_thermal_package_rate_control =
-			pkg_temp_thermal_platform_thermal_rate_control;
 
 	cpu_notifier_register_begin();
 	for_each_online_cpu(i)

@@ -597,6 +593,11 @@ static int __init pkg_temp_thermal_init(void)
 	__register_hotcpu_notifier(&pkg_temp_thermal_notifier);
 	cpu_notifier_register_done();
 
+	platform_thermal_package_notify =
+			pkg_temp_thermal_platform_thermal_notify;
+	platform_thermal_package_rate_control =
+			pkg_temp_thermal_platform_thermal_rate_control;
+
 	pkg_temp_debugfs_init(); /* Don't care if fails */
 
 	return 0;

-- 
2.1.4