[PATCH v1 6/7] powercap/dtpm/dtpm_cpu: Add exit function

From: Daniel Lezcano <daniel.lezcano@linaro.org>
To: daniel.lezcano@linaro.org, rjw@rjwysocki.net
Cc: heiko@sntech.de, lukasz.luba@arm.com,
	linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
	ulf.hansson@linaro.org,
	Daniel Lezcano <daniel.lezcano@kernel.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>
Subject: [PATCH v1 6/7] powercap/dtpm/dtpm_cpu: Add exit function
Date: Sun, 30 Jan 2022 22:02:08 +0100	[thread overview]
Message-ID: <20220130210210.549877-6-daniel.lezcano@linaro.org> (raw)
In-Reply-To: <20220130210210.549877-1-daniel.lezcano@linaro.org>

Now that we can destroy the hierarchy, the code must remove what it
had put in place at the creation. In our case, the cpu hotplug
callbacks.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/powercap/dtpm_cpu.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/powercap/dtpm_cpu.c b/drivers/powercap/dtpm_cpu.c
index 71f45d2f5a60..bca2f912d349 100644
--- a/drivers/powercap/dtpm_cpu.c
+++ b/drivers/powercap/dtpm_cpu.c
@@ -299,8 +299,15 @@ static int dtpm_cpu_init(void)
 	return 0;
 }
 
+static void dtpm_cpu_exit(void)
+{
+	cpuhp_remove_state_nocalls(CPUHP_AP_ONLINE_DYN);
+	cpuhp_remove_state_nocalls(CPUHP_AP_DTPM_CPU_DEAD);
+}
+
 struct dtpm_subsys_ops dtpm_cpu_ops = {
 	.name = KBUILD_MODNAME,
 	.init = dtpm_cpu_init,
+	.exit = dtpm_cpu_exit,
 	.setup = dtpm_cpu_setup,
 };
-- 
2.25.1

