diff mbox series

[4/5] thermal/core: Enforce paired .bind/.unbind callbacks

Message ID 20230324070807.6342-4-rui.zhang@intel.com
State New
Headers show
Series [v2,1/5] thermal/core: Update cooling device during thermal zone unregistration | expand

Commit Message

Zhang Rui March 24, 2023, 7:08 a.m. UTC
The .bind/.unbind callbacks are designed to allow the thermal zone
device to bind to/unbind from a matched cooling device, with thermal
instances created/deleted.

In this sense, .bind/.unbind callbacks must exist in pairs.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
 drivers/thermal/thermal_core.c | 5 +++++
 1 file changed, 5 insertions(+)
diff mbox series

Patch

diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 5225d65fb0e0..9c447f22cb39 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -1258,6 +1258,11 @@  thermal_zone_device_register_with_trips(const char *type, struct thermal_trip *t
 	if (num_trips > 0 && (!ops->get_trip_type || !ops->get_trip_temp) && !trips)
 		return ERR_PTR(-EINVAL);
 
+	if ((ops->bind && !ops->unbind) || (!ops->bind && ops->unbind)) {
+		pr_err("Thermal zone device .bind/.unbind not paired\n");
+		return ERR_PTR(-EINVAL);
+	}
+
 	if (!thermal_class)
 		return ERR_PTR(-ENODEV);