mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-06 02:24:14 +08:00
drivers: thermal: add check when unregistering cpu cooling
This patch avoids NULL pointer accesses while unregistering cpu cooling devices, in case a NULL pointer is received. Cc: Zhang Rui <rui.zhang@intel.com> Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
This commit is contained in:
parent
a8892d8389
commit
50e66c7ed8
@ -498,8 +498,12 @@ EXPORT_SYMBOL_GPL(cpufreq_cooling_register);
|
||||
*/
|
||||
void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev)
|
||||
{
|
||||
struct cpufreq_cooling_device *cpufreq_dev = cdev->devdata;
|
||||
struct cpufreq_cooling_device *cpufreq_dev;
|
||||
|
||||
if (!cdev)
|
||||
return;
|
||||
|
||||
cpufreq_dev = cdev->devdata;
|
||||
mutex_lock(&cooling_cpufreq_lock);
|
||||
cpufreq_dev_count--;
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user