tools/lib/thermal: Fix thermal_sampling_exit()

thermal_sampling_init() suscribes to THERMAL_GENL_SAMPLING_GROUP_NAME group
so thermal_sampling_exit() should unsubscribe from the same group.

Fixes: 47c4b0de ("tools/lib/thermal: Add a thermal library")
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lore.kernel.org/r/20230202102812.453357-1-vincent.guittot@linaro.orgSigned-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

tools/lib/thermal/sampling.c

@@ -54,7 +54,7 @@ int thermal_sampling_fd(struct thermal_handler *th)
 thermal_error_t thermal_sampling_exit(struct thermal_handler *th)
 {
 	if (nl_unsubscribe_thermal(th->sk_sampling, th->cb_sampling,
-				   THERMAL_GENL_EVENT_GROUP_NAME))
+				   THERMAL_GENL_SAMPLING_GROUP_NAME))
 		return THERMAL_ERROR;
 
 	nl_thermal_disconnect(th->sk_sampling, th->cb_sampling);