Hi,

On Wed, 2019-07-24 at 21:07 +0200, Krzysztof Kozlowski wrote:

On Tue, Jul 23, 2019 at 02:20:06PM +0200, Artur Świgoń wrote:

quoted

This patch adds a new static function, exynos_bus_profile_init(), extracted
from exynos_bus_probe().

Signed-off-by: Artur Świgoń <redacted>
---
 drivers/devfreq/exynos-bus.c | 106 ++++++++++++++++++++---------------
 1 file changed, 60 insertions(+), 46 deletions(-)

diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bus.c
index d9f377912c10..d8f1efaf2d49 100644
--- a/drivers/devfreq/exynos-bus.c
+++ b/drivers/devfreq/exynos-bus.c

@@ -372,12 +372,69 @@ static int exynos_bus_parse_of(struct device_node *np,
 	return ret;
 }
 
+static int exynos_bus_profile_init(struct exynos_bus *bus,
+				   struct devfreq_dev_profile *profile)
+{
+	struct device *dev = bus->dev;
+	struct devfreq_simple_ondemand_data *ondemand_data;
+	int ret;
+
+	/* Initialize the struct profile and governor data for parent device */
+	profile->polling_ms = 50;
+	profile->target = exynos_bus_target;
+	profile->get_dev_status = exynos_bus_get_dev_status;
+	profile->exit = exynos_bus_exit;
+
+	ondemand_data = devm_kzalloc(dev, sizeof(*ondemand_data), GFP_KERNEL);
+	if (!ondemand_data) {
+		ret = -ENOMEM;
+		goto err;

Just return proper error code. Less lines, obvious code since you do not
have any cleanup in error path.

I was advised to avoid modifying code being moved (in one patch). I do make
changes in these places in patch 04/11, i.e. change the original label 'err' to
'out'. What's your opinion on making the proposed changes to patches 01 and 02
(s/goto err/return ret/) in patch 04 instead?

quoted

+
+	/* Register opp_notifier to catch the change of OPP  */
+	ret = devm_devfreq_register_opp_notifier(dev, bus->devfreq);
+	if (ret < 0) {
+		dev_err(dev, "failed to register opp notifier\n");
+		goto err;

The same - return err.

Best regards,
Krzysztof

Best regards,
-- 
Artur Świgoń
Samsung R&D Institute Poland
Samsung Electronics



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