From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from na01-bn1-obe.outbound.protection.outlook.com (mail-bn1on0087.outbound.protection.outlook.com [157.56.110.87]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3qpwgg6Jk4zDq5y for ; Tue, 19 Apr 2016 16:52:47 +1000 (AEST) From: Jia Hongtao To: , CC: , , , Subject: [PATCH V2] cpufreq: qoriq: Fix cooling device registration issue during suspend Date: Tue, 19 Apr 2016 14:43:26 +0800 Message-ID: <1461048206-23567-1-git-send-email-hongtao.jia@nxp.com> MIME-Version: 1.0 Content-Type: text/plain List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cooling device is registered by ready callback. It's also invoked while system resuming from sleep (Enabling non-boot cpus). Thus cooling device may be multiple registered. Matchable unregistration is added to exit callback to fix this issue. Signed-off-by: Jia Hongtao --- Changes for V2: * Using qoriq_cpufreq_cpu_exit() callback instead of adding stop_cpu(). drivers/cpufreq/qoriq-cpufreq.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/cpufreq/qoriq-cpufreq.c b/drivers/cpufreq/qoriq-cpufreq.c index b23e525..0b85f90 100644 --- a/drivers/cpufreq/qoriq-cpufreq.c +++ b/drivers/cpufreq/qoriq-cpufreq.c @@ -301,10 +301,11 @@ err_np: return -ENODEV; } -static int __exit qoriq_cpufreq_cpu_exit(struct cpufreq_policy *policy) +static int qoriq_cpufreq_cpu_exit(struct cpufreq_policy *policy) { struct cpu_data *data = policy->driver_data; + cpufreq_cooling_unregister(data->cdev); kfree(data->pclk); kfree(data->table); kfree(data); @@ -348,7 +349,7 @@ static struct cpufreq_driver qoriq_cpufreq_driver = { .name = "qoriq_cpufreq", .flags = CPUFREQ_CONST_LOOPS, .init = qoriq_cpufreq_cpu_init, - .exit = __exit_p(qoriq_cpufreq_cpu_exit), + .exit = qoriq_cpufreq_cpu_exit, .verify = cpufreq_generic_frequency_table_verify, .target_index = qoriq_cpufreq_target, .get = cpufreq_generic_get, -- 2.1.0.27.g96db324