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cpuidle: call cpuidle_get_driver() from after taking cpuidle_driver_lock
[cascardo/linux.git]
/
drivers
/
cpuidle
/
driver.c
diff --git
a/drivers/cpuidle/driver.c
b/drivers/cpuidle/driver.c
index
a930005
..
2458a74
100644
(file)
--- a/
drivers/cpuidle/driver.c
+++ b/
drivers/cpuidle/driver.c
@@
-338,10
+338,11
@@
struct cpuidle_driver *cpuidle_driver_ref(void)
*/
void cpuidle_driver_unref(void)
{
- struct cpuidle_driver *drv
= cpuidle_get_driver()
;
+ struct cpuidle_driver *drv;
spin_lock(&cpuidle_driver_lock);
+ drv = cpuidle_get_driver();
if (drv && !WARN_ON(drv->refcnt <= 0))
drv->refcnt--;