From 8ab8831a503e8996edd727d98ec5be62b8d799d9 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Wed, 5 Jun 2013 11:42:59 +0530 Subject: PM / devfreq: Fix incorrect usage of IS_ERR_OR_NULL in exynos5_bus.c platform_device_register_simple does not return NULL. Hence NULL check is not required. Signed-off-by: Sachin Kamat Acked-by: MyungJoo Ham Signed-off-by: MyungJoo Ham --- drivers/devfreq/exynos/exynos5_bus.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/devfreq/exynos/exynos5_bus.c b/drivers/devfreq/exynos/exynos5_bus.c index 574b16b..cd1e630 100644 --- a/drivers/devfreq/exynos/exynos5_bus.c +++ b/drivers/devfreq/exynos/exynos5_bus.c @@ -479,7 +479,7 @@ static int __init exynos5_busfreq_int_init(void) exynos5_devfreq_pdev = platform_device_register_simple("exynos5-bus-int", -1, NULL, 0); - if (IS_ERR_OR_NULL(exynos5_devfreq_pdev)) { + if (IS_ERR(exynos5_devfreq_pdev)) { ret = PTR_ERR(exynos5_devfreq_pdev); goto out1; } -- cgit v1.1 From 81c12a0a79575a22b64f050ea2e626f12d124841 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Wed, 5 Jun 2013 11:43:00 +0530 Subject: PM / devfreq: Remove redundant platform_set_drvdata() in exynos5_bus.c Commit 0998d06310 (device-core: Ensure drvdata = NULL when no driver is bound) removes the need to set driver data field to NULL. Signed-off-by: Sachin Kamat Acked-by: MyungJoo Ham Signed-off-by: MyungJoo Ham --- drivers/devfreq/exynos/exynos5_bus.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/devfreq/exynos/exynos5_bus.c b/drivers/devfreq/exynos/exynos5_bus.c index cd1e630..9a82419 100644 --- a/drivers/devfreq/exynos/exynos5_bus.c +++ b/drivers/devfreq/exynos/exynos5_bus.c @@ -419,7 +419,6 @@ static int exynos5_busfreq_int_probe(struct platform_device *pdev) err_devfreq_add: devfreq_remove_device(data->devfreq); - platform_set_drvdata(pdev, NULL); err_opp_add: clk_put(data->int_clk); err_clock: @@ -437,7 +436,6 @@ static int exynos5_busfreq_int_remove(struct platform_device *pdev) devfreq_remove_device(data->devfreq); regulator_put(data->vdd_int); clk_put(data->int_clk); - platform_set_drvdata(pdev, NULL); return 0; } -- cgit v1.1 From 02844f747e72186f7d3f34d6f78de90cb8eb2139 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Wed, 5 Jun 2013 11:43:01 +0530 Subject: PM / devfreq: Use devm_* APIs in exynos5_bus.c devm_* APIs are device managed and make clean up and exit codes simpler. Signed-off-by: Sachin Kamat Signed-off-by: MyungJoo Ham --- drivers/devfreq/exynos/exynos5_bus.c | 26 ++++++++------------------ 1 file changed, 8 insertions(+), 18 deletions(-) diff --git a/drivers/devfreq/exynos/exynos5_bus.c b/drivers/devfreq/exynos/exynos5_bus.c index 9a82419..102d1f0 100644 --- a/drivers/devfreq/exynos/exynos5_bus.c +++ b/drivers/devfreq/exynos/exynos5_bus.c @@ -351,20 +351,18 @@ static int exynos5_busfreq_int_probe(struct platform_device *pdev) err = exynos5250_init_int_tables(data); if (err) - goto err_regulator; + return err; - data->vdd_int = regulator_get(dev, "vdd_int"); + data->vdd_int = devm_regulator_get(dev, "vdd_int"); if (IS_ERR(data->vdd_int)) { dev_err(dev, "Cannot get the regulator \"vdd_int\"\n"); - err = PTR_ERR(data->vdd_int); - goto err_regulator; + return PTR_ERR(data->vdd_int); } - data->int_clk = clk_get(dev, "int_clk"); + data->int_clk = devm_clk_get(dev, "int_clk"); if (IS_ERR(data->int_clk)) { dev_err(dev, "Cannot get clock \"int_clk\"\n"); - err = PTR_ERR(data->int_clk); - goto err_clock; + return PTR_ERR(data->int_clk); } rcu_read_lock(); @@ -374,8 +372,7 @@ static int exynos5_busfreq_int_probe(struct platform_device *pdev) rcu_read_unlock(); dev_err(dev, "Invalid initial frequency %lu kHz.\n", exynos5_devfreq_int_profile.initial_freq); - err = PTR_ERR(opp); - goto err_opp_add; + return PTR_ERR(opp); } initial_freq = opp_get_freq(opp); initial_volt = opp_get_voltage(opp); @@ -385,12 +382,12 @@ static int exynos5_busfreq_int_probe(struct platform_device *pdev) err = clk_set_rate(data->int_clk, initial_freq * 1000); if (err) { dev_err(dev, "Failed to set initial frequency\n"); - goto err_opp_add; + return err; } err = exynos5_int_setvolt(data, initial_volt); if (err) - goto err_opp_add; + return err; platform_set_drvdata(pdev, data); @@ -419,11 +416,6 @@ static int exynos5_busfreq_int_probe(struct platform_device *pdev) err_devfreq_add: devfreq_remove_device(data->devfreq); -err_opp_add: - clk_put(data->int_clk); -err_clock: - regulator_put(data->vdd_int); -err_regulator: return err; } @@ -434,8 +426,6 @@ static int exynos5_busfreq_int_remove(struct platform_device *pdev) pm_qos_remove_request(&data->int_req); unregister_pm_notifier(&data->pm_notifier); devfreq_remove_device(data->devfreq); - regulator_put(data->vdd_int); - clk_put(data->int_clk); return 0; } -- cgit v1.1 From 9671dc7935722a911262cade5c594315540628f2 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Fri, 7 Jun 2013 14:25:49 +0530 Subject: PM / devfreq: Remove duplicate header file inclusion in exynos5_bus.c linux/opp.h was included twice. Signed-off-by: Sachin Kamat Signed-off-by: MyungJoo Ham --- drivers/devfreq/exynos/exynos5_bus.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/devfreq/exynos/exynos5_bus.c b/drivers/devfreq/exynos/exynos5_bus.c index 102d1f0..04c164e 100644 --- a/drivers/devfreq/exynos/exynos5_bus.c +++ b/drivers/devfreq/exynos/exynos5_bus.c @@ -18,7 +18,6 @@ #include #include #include -#include #include #include #include -- cgit v1.1 From ea7f4548c93aacbac5fe3e1b4eb273d3df5f16e3 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 15 Aug 2013 10:55:10 +0300 Subject: PM / devfreq: create_freezable_workqueue() doesn't return an ERR_PTR The create_freezable_workqueue() function returns a NULL on error and not an ERR_PTR. Signed-off-by: Dan Carpenter Signed-off-by: MyungJoo Ham --- drivers/devfreq/devfreq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c index c99c00d..22e5d2f 100644 --- a/drivers/devfreq/devfreq.c +++ b/drivers/devfreq/devfreq.c @@ -993,10 +993,10 @@ static int __init devfreq_init(void) } devfreq_wq = create_freezable_workqueue("devfreq_wq"); - if (IS_ERR(devfreq_wq)) { + if (!devfreq_wq) { class_destroy(devfreq_class); pr_err("%s: couldn't create workqueue\n", __FILE__); - return PTR_ERR(devfreq_wq); + return -ENOMEM; } devfreq_class->dev_groups = devfreq_groups; -- cgit v1.1