[PATCH 1/4] PM / devfreq: reuse system workqueue machanism

From: Kamil Konieczny <k.konieczny@samsung.com>
To: k.konieczny@samsung.com
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	Chanwoo Choi <cw00.choi@samsung.com>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Kyungmin Park <kyungmin.park@samsung.com>,
	linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	MyungJoo Ham <myungjoo.ham@samsung.com>
Subject: [PATCH 1/4] PM / devfreq: reuse system workqueue machanism
Date: Mon,  9 Dec 2019 15:44:22 +0100	[thread overview]
Message-ID: <20191209144425.13321-2-k.konieczny@samsung.com> (raw)
In-Reply-To: <20191209144425.13321-1-k.konieczny@samsung.com>

There is no need for creating another workqueue, it is enough
to reuse system_freezable_power_efficient one.

Signed-off-by: Kamil Konieczny <k.konieczny@samsung.com>
---
 drivers/devfreq/devfreq.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 46a7ff7c2994..955949c6fc1f 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -1532,11 +1532,11 @@ static int __init devfreq_init(void)
 		return PTR_ERR(devfreq_class);
 	}
 
-	devfreq_wq = create_freezable_workqueue("devfreq_wq");
+	devfreq_wq = system_freezable_power_efficient_wq;
 	if (!devfreq_wq) {
 		class_destroy(devfreq_class);
-		pr_err("%s: couldn't create workqueue\n", __FILE__);
-		return -ENOMEM;
+		pr_err("%s: system_freezable_power_efficient_wq isn't initialized\n", __FILE__);
+		return -EINVAL;
 	}
 	devfreq_class->dev_groups = devfreq_groups;
 
-- 
2.24.0

