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Mon, 9 Dec 2019 10:50:33 +0000 (GMT) From: =?UTF-8?q?Artur=20=C5=9Awigo=C5=84?= To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-pm@vger.kernel.org Cc: =?UTF-8?q?Artur=20=C5=9Awigo=C5=84?= , cw00.choi@samsung.com, myungjoo.ham@samsung.com, kyungmin.park@samsung.com, kgene@kernel.org, krzk@kernel.org, b.zolnierkie@samsung.com, m.szyprowski@samsung.com, inki.dae@samsung.com, sw0312.kim@samsung.com, k.konieczny@samsung.com, leonard.crestez@nxp.com Subject: [PATCH v3 4/4] devfreq: exynos-bus: Clean up code Date: Mon, 9 Dec 2019 11:49:02 +0100 Message-Id: <20191209104902.11904-5-a.swigon@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191209104902.11904-1-a.swigon@samsung.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Brightmail-Tracker: H4sIAAAAAAAAA01SaUhUYRTlm/fezFMae46CV4vMIY0WtbAfXxqV5Y+BCvJXlGiN+XIkN+a5 pGVuKOWWjphLIeKI2pioo4kLSOqU2SCTSC6IaWpuqamjoRKW47Py37n3nHPvPR8fTUj0lB0d FBrBKkPlwVKhOdn4fsPgvOm06Huq6+tJPFqcgnBdQQ2FB1anKawazSZxyUoBhZ9NfCewwVAr wj1J8yJcObJMYe1EP4X7Wl4KsTFTh3CBoU2Aq3UjIjycWCnEBbmzwouMTKt5KpTVl8XL6hab BLKsBg2SGbWHrlO3zM8FsMFBUazS9fwdc8Wcvp4Kzzr6QJWupRLQJ/s0ZEYDcwYMSw2CNGRO S5hKBI2bKRRfrCIoLtbsMkYErXnzZBqidywZOWK+X4Egt38c/XMM5Nci01wh4wmqvDGRibBm UhD0GoYIU0EwHwUwk5pEmVRWjDvMbHwmTZhkHMHYObaDxcxZWPzxWshfaA9VtW8JEzbb1i+X 94h4jSV0F07u6IltTfKbFzsLgJkVgW7og4A3e8HvicxdbAVzXQ0iHh8EfW4GyWMOvjWPUrw5 AYG2XEfwhAd0dvVSptAEcwxqWlz5tidol9Z338ICBhcs+RssQNWYT/BtMTxJlfBQCi2FFrwR IKmqf3e2DArV78hs5FC0J0zRnjBF/9eWIEKDbNhILiSQ5dxC2WgXTh7CRYYGutwNC9Gi7S+m 3+paa0Jtv/w7EEMj6T7xYfcFXwklj+JiQjoQ0ITUWlyWM+crEQfIY2JZZdhtZWQwy3WgAzQp tRG7lc76SphAeQR7n2XDWeVfVkCb2SWgmBOzV9b3O9k+OjLVuuXtfIOITnX3613UxE6qjNZ+ rgrv58ZL431SSbXPtZ816vStDrJCrVgJUG5MSscX1prTp+Orki3dL+commeuOiQ+NN6L+3Kh D7cPPSaH2wem/buDWrkM9ZTXNDi3F8/orVs9fDZtV9WvkGPAzdLBOJ1BSnIK+enjhJKT/wG0 xutGXgMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrAIsWRmVeSWpSXmKPExsVy+t/xu7q/1N7FGmz/yW9xf14ro8XGGetZ La5/ec5qMen+BBaLBZ9msFr0P37NbHH+/AZ2i7NNb9gtVtz9yGqx6fE1VovLu+awWXzuPcJo MeP8PiaLtUfuslvcblzBZjFj8ks2BwGPTas62Tw2L6n32PhuB5NH35ZVjB6fN8kFsEbp2RTl l5akKmTkF5fYKkUbWhjpGVpa6BmZWOoZGpvHWhmZKunb2aSk5mSWpRbp2yXoZbw6vZm1oE+9 YlL3JtYGxgvyXYwcHBICJhI9E3m7GLk4hASWMko0bPnN1sXICRSXkPi4/gYrhC0s8edaFxtE 0SdGiUVbvjOCJNgEHCUmTX3ADpIQEehklFi/bDoTiMMscINJomnLOxaQKmEBK4kXP6+C2SwC qhKfDz8As3kFLCXevV8DtU5eYvWGA8wgNidQ/cdlZ9lBbCGgmrkLV0PVC0qcnPmEBeRsZgF1 ifXzhEDCzECtzVtnM09gFJyFpGoWQtUsJFULGJlXMYqklhbnpucWG+oVJ+YWl+al6yXn525i BMbmtmM/N+9gvLQx+BCjAAejEg9vhc3bWCHWxLLiytxDjBIczEoivEsmvooV4k1JrKxKLcqP LyrNSS0+xGgK9NpEZinR5Hxg2sgriTc0NTS3sDQ0NzY3NrNQEuftEDgYIySQnliSmp2aWpBa BNPHxMEp1cDoyXbx5a3PjC+WM26sC9/yver75HdTZU41W77UVREq659xY2rmp1uBwuefmKd4 vG1K6L/WuHqCe7WrDpNg0dUdFbuWbKoI6+sOvHXoumpxwJkltpfD4yyE5y/pnM7uwWZesu71 uq+Mq0//fxLeOeuWg66K/q9bZx7/+/N101mOu9obptU7yjLvVmIpzkg01GIuKk4EAEuOt0Dj AgAA X-CMS-MailID: 20191209105034eucas1p277be9a40363fec76b4241d28e71e40d2 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20191209105034eucas1p277be9a40363fec76b4241d28e71e40d2 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20191209105034eucas1p277be9a40363fec76b4241d28e71e40d2 References: <20191209104902.11904-1-a.swigon@samsung.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds minor improvements to the exynos-bus driver, including cleaning up header includes, variables, and return paths. Signed-off-by: Artur Świgoń --- drivers/devfreq/exynos-bus.c | 56 +++++++++++++++--------------------- 1 file changed, 23 insertions(+), 33 deletions(-) diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bus.c index 0b557df63666..3eb6a043284a 100644 --- a/drivers/devfreq/exynos-bus.c +++ b/drivers/devfreq/exynos-bus.c @@ -15,11 +15,10 @@ #include #include #include -#include +#include #include #include #include -#include #define DEFAULT_SATURATION_RATIO 40 @@ -178,7 +177,7 @@ static int exynos_bus_parent_parse_of(struct device_node *np, struct device *dev = bus->dev; struct opp_table *opp_table; const char *vdd = "vdd"; - int i, ret, count, size; + int i, ret, count; opp_table = dev_pm_opp_set_regulators(dev, &vdd, 1); if (IS_ERR(opp_table)) { @@ -201,8 +200,7 @@ static int exynos_bus_parent_parse_of(struct device_node *np, } bus->edev_count = count; - size = sizeof(*bus->edev) * count; - bus->edev = devm_kzalloc(dev, size, GFP_KERNEL); + bus->edev = devm_kcalloc(dev, count, sizeof(*bus->edev), GFP_KERNEL); if (!bus->edev) { ret = -ENOMEM; goto err_regulator; @@ -301,10 +299,9 @@ static int exynos_bus_profile_init(struct exynos_bus *bus, profile->exit = exynos_bus_exit; ondemand_data = devm_kzalloc(dev, sizeof(*ondemand_data), GFP_KERNEL); - if (!ondemand_data) { - ret = -ENOMEM; - goto err; - } + if (!ondemand_data) + return -ENOMEM; + ondemand_data->upthreshold = 40; ondemand_data->downdifferential = 5; @@ -314,15 +311,14 @@ static int exynos_bus_profile_init(struct exynos_bus *bus, ondemand_data); if (IS_ERR(bus->devfreq)) { dev_err(dev, "failed to add devfreq device\n"); - ret = PTR_ERR(bus->devfreq); - goto err; + return PTR_ERR(bus->devfreq); } /* 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; + return ret; } /* @@ -332,17 +328,16 @@ static int exynos_bus_profile_init(struct exynos_bus *bus, ret = exynos_bus_enable_edev(bus); if (ret < 0) { dev_err(dev, "failed to enable devfreq-event devices\n"); - goto err; + return ret; } ret = exynos_bus_set_event(bus); if (ret < 0) { dev_err(dev, "failed to set event to devfreq-event devices\n"); - goto err; + return ret; } -err: - return ret; + return 0; } static int exynos_bus_profile_init_passive(struct exynos_bus *bus, @@ -351,7 +346,6 @@ static int exynos_bus_profile_init_passive(struct exynos_bus *bus, struct device *dev = bus->dev; struct devfreq_passive_data *passive_data; struct devfreq *parent_devfreq; - int ret = 0; /* Initialize the struct profile and governor data for passive device */ profile->target = exynos_bus_target; @@ -359,30 +353,26 @@ static int exynos_bus_profile_init_passive(struct exynos_bus *bus, /* Get the instance of parent devfreq device */ parent_devfreq = devfreq_get_devfreq_by_phandle(dev, 0); - if (IS_ERR(parent_devfreq)) { - ret = -EPROBE_DEFER; - goto err; - } + if (IS_ERR(parent_devfreq)) + return -EPROBE_DEFER; passive_data = devm_kzalloc(dev, sizeof(*passive_data), GFP_KERNEL); - if (!passive_data) { - ret = -ENOMEM; - goto err; - } + if (!passive_data) + return -ENOMEM; + passive_data->parent = parent_devfreq; /* Add devfreq device for exynos bus with passive governor */ - bus->devfreq = devm_devfreq_add_device(dev, profile, DEVFREQ_GOV_PASSIVE, + bus->devfreq = devm_devfreq_add_device(dev, profile, + DEVFREQ_GOV_PASSIVE, passive_data); if (IS_ERR(bus->devfreq)) { dev_err(dev, "failed to add devfreq dev with passive governor\n"); - ret = PTR_ERR(bus->devfreq); - goto err; + return PTR_ERR(bus->devfreq); } -err: - return ret; + return 0; } static int exynos_bus_probe(struct platform_device *pdev) @@ -400,18 +390,18 @@ static int exynos_bus_probe(struct platform_device *pdev) return -EINVAL; } - bus = devm_kzalloc(&pdev->dev, sizeof(*bus), GFP_KERNEL); + bus = devm_kzalloc(dev, sizeof(*bus), GFP_KERNEL); if (!bus) return -ENOMEM; mutex_init(&bus->lock); - bus->dev = &pdev->dev; + bus->dev = dev; platform_set_drvdata(pdev, bus); profile = devm_kzalloc(dev, sizeof(*profile), GFP_KERNEL); if (!profile) return -ENOMEM; - node = of_parse_phandle(dev->of_node, "devfreq", 0); + node = of_parse_phandle(np, "devfreq", 0); if (node) { of_node_put(node); passive = true; -- 2.17.1