When a new cooling device is registered, we need to update the thermal zone to set the new registered cooling device to a proper state. This fixes a problem that the system is cool, while the fan devices are left running on full speed after boot, if fan device is registered after thermal zone device. CC: <stable@xxxxxxxxxxxxxxx> #3.18+ Reference:https://bugzilla.kernel.org/show_bug.cgi?id=92431 Tested-by: Manuel Krause <manuelkrause@xxxxxxxxxxxx> Tested-by: szegad <szegadlo@xxxxxxxxxxxxxx> Tested-by: prash <prash.n.rao@xxxxxxxxx> Tested-by: amish <ammdispose-arch@xxxxxxxxx> Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx> --- drivers/thermal/thermal_core.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 9c03561..7cef579 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -1141,6 +1141,7 @@ __thermal_cooling_device_register(struct device_node *np, const struct thermal_cooling_device_ops *ops) { struct thermal_cooling_device *cdev; + struct thermal_instance *pos, *next; int result; if (type && strlen(type) >= THERMAL_NAME_LENGTH) @@ -1185,6 +1186,15 @@ __thermal_cooling_device_register(struct device_node *np, /* Update binding information for 'this' new cdev */ bind_cdev(cdev); + list_for_each_entry_safe(pos, next, &cdev->thermal_instances, cdev_node) { + if (next->cdev_node.next == &cdev->thermal_instances) { + thermal_zone_device_update(next->tz); + break; + } + if (pos->tz != next->tz) + thermal_zone_device_update(pos->tz); + } + return cdev; } -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html