2 files changed, 6 insertions, 4 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 1150444a21ab..070742360a29 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2146,7 +2146,7 @@ and is between 256 and 4096 characters. It is defined in the file
 
         thermal.crt=    [HW,ACPI]
                         -1: disable all critical trip points in all thermal zones
-                        <degrees C>: lower all critical trip points
+                        <degrees C>: override all critical trip points
 
         thermal.nocrt=  [HW,ACPI]
                         Set to disable actions on ACPI thermal zone
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index e052a75c29ce..e9e17dfc5dc2 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -388,10 +388,12 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
                         } else if (crt > 0) {
                                 unsigned long crt_k = CELSIUS_TO_KELVIN(crt);
                                 /*
-                                 * Allow override to lower critical threshold
+                                 * Allow override critical threshold
                                  */
-                                if (crt_k < tz->trips.critical.temperature)
-                                        tz->trips.critical.temperature = crt_k;
+                                if (crt_k > tz->trips.critical.temperature)
+                                        printk(KERN_WARNING PREFIX
+                                                "Critical threshold %d C\n", crt);
+                                tz->trips.critical.temperature = crt_k;
                         }
                 }
         }