thermal/core: avoid memory leak

When memory allocation for cdev is successful but ida_simple_get fails, branch to out_kfree_cdev label happens and cdev isn't freed. There are also some other cases in which the memory can leak. Fix it by freeing cdev.

---
Fix description

 drivers/thermal/thermal_core.c | 1 +
 1 file changed, 1 insertion(+)

index c8d4010940ef..3566fd291399 100644
@@ -1017,6 +1017,7 @@ __thermal_cooling_device_register(struct device_node *np,
 out_ida_remove:
 	ida_simple_remove(&thermal_cdev_ida, cdev->id);
 out_kfree_cdev:
+	kfree(cdev);
 	return ERR_PTR(ret);
 }
 

2.25.1