Merge tag 'thermal-6.4-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull thermal control fixes from Rafael Wysocki:
 "These fix a NULL pointer dereference in the Intel powerclamp driver
  introduced during the 6.3 cycle and update MAINTAINERS to match recent
  code changes.

  Specifics:

   - Fix NULL pointer access in the Intel powerclamp thermal driver that
     occurs on attempts to set the cooling device state to 0 in the
     default configuration (Srinivas Pandruvada)

   - Drop the stale MAINTAINERS entry for the Intel Menlow thermal
     driver that has been removed recently (Lukas Bulwahn)"

* tag 'thermal-6.4-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  MAINTAINERS: remove section INTEL MENLOW THERMAL DRIVER
  thermal: intel: powerclamp: Fix NULL pointer access issue

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/thermal/intel/intel_powerclamp.c b/drivers/thermal/intel/intel_powerclamp.c
index 91fc7e239497..36243a3972fd 100644
--- a/drivers/thermal/intel/intel_powerclamp.c
+++ b/drivers/thermal/intel/intel_powerclamp.c
@@ -703,6 +703,10 @@ static int powerclamp_set_cur_state(struct thermal_cooling_device *cdev,
 
 	new_target_ratio = clamp(new_target_ratio, 0UL,
 				(unsigned long) (max_idle - 1));
+
+	if (powerclamp_data.target_ratio == new_target_ratio)
+		goto exit_set;
+
 	if (!powerclamp_data.target_ratio && new_target_ratio > 0) {
 		pr_info("Start idle injection to reduce power\n");
 		powerclamp_data.target_ratio = new_target_ratio;