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author | Guenter Roeck <linux@roeck-us.net> | 2012-06-02 11:20:20 -0700 |
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committer | Guenter Roeck <linux@roeck-us.net> | 2012-07-21 21:48:41 -0700 |
commit | 5e0c876920e6cc5cd074f1a5a8d4c30783f9baf9 (patch) | |
tree | 385a2da8db92095e7220056167ff901b5d8c4831 /drivers/hwmon | |
parent | 3fafb0ce92f13d14ba1c1340ac185e5c78fc7eae (diff) | |
download | linux-5e0c876920e6cc5cd074f1a5a8d4c30783f9baf9.tar.gz linux-5e0c876920e6cc5cd074f1a5a8d4c30783f9baf9.tar.bz2 linux-5e0c876920e6cc5cd074f1a5a8d4c30783f9baf9.zip |
hwmon: (pc87427) Convert to use devm_ functions
Convert to use devm_ functions to reduce code size and simplify the code.
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r-- | drivers/hwmon/pc87427.c | 51 |
1 files changed, 11 insertions, 40 deletions
diff --git a/drivers/hwmon/pc87427.c b/drivers/hwmon/pc87427.c index 37059a3755e9..f185b1fa53e5 100644 --- a/drivers/hwmon/pc87427.c +++ b/drivers/hwmon/pc87427.c @@ -956,44 +956,28 @@ static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); * Device detection, attach and detach */ -static void pc87427_release_regions(struct platform_device *pdev, int count) -{ - struct resource *res; - int i; - - for (i = 0; i < count; i++) { - res = platform_get_resource(pdev, IORESOURCE_IO, i); - release_region(res->start, resource_size(res)); - } -} - static int __devinit pc87427_request_regions(struct platform_device *pdev, int count) { struct resource *res; - int i, err = 0; + int i; for (i = 0; i < count; i++) { res = platform_get_resource(pdev, IORESOURCE_IO, i); if (!res) { - err = -ENOENT; dev_err(&pdev->dev, "Missing resource #%d\n", i); - break; + return -ENOENT; } - if (!request_region(res->start, resource_size(res), DRVNAME)) { - err = -EBUSY; + if (!devm_request_region(&pdev->dev, res->start, + resource_size(res), DRVNAME)) { dev_err(&pdev->dev, "Failed to request region 0x%lx-0x%lx\n", (unsigned long)res->start, (unsigned long)res->end); - break; + return -EBUSY; } } - - if (err && i) - pc87427_release_regions(pdev, i); - - return err; + return 0; } static void __devinit pc87427_init_device(struct device *dev) @@ -1094,11 +1078,11 @@ static int __devinit pc87427_probe(struct platform_device *pdev) struct pc87427_data *data; int i, err, res_count; - data = kzalloc(sizeof(struct pc87427_data), GFP_KERNEL); + data = devm_kzalloc(&pdev->dev, sizeof(struct pc87427_data), + GFP_KERNEL); if (!data) { - err = -ENOMEM; pr_err("Out of memory\n"); - goto exit; + return -ENOMEM; } data->address[0] = sio_data->address[0]; @@ -1107,7 +1091,7 @@ static int __devinit pc87427_probe(struct platform_device *pdev) err = pc87427_request_regions(pdev, res_count); if (err) - goto exit_kfree; + return err; mutex_init(&data->lock); data->name = "pc87427"; @@ -1117,7 +1101,7 @@ static int __devinit pc87427_probe(struct platform_device *pdev) /* Register sysfs hooks */ err = device_create_file(&pdev->dev, &dev_attr_name); if (err) - goto exit_release_region; + return err; for (i = 0; i < 8; i++) { if (!(data->fan_enabled & (1 << i))) continue; @@ -1154,28 +1138,15 @@ static int __devinit pc87427_probe(struct platform_device *pdev) exit_remove_files: pc87427_remove_files(&pdev->dev); -exit_release_region: - pc87427_release_regions(pdev, res_count); -exit_kfree: - platform_set_drvdata(pdev, NULL); - kfree(data); -exit: return err; } static int __devexit pc87427_remove(struct platform_device *pdev) { struct pc87427_data *data = platform_get_drvdata(pdev); - int res_count; - - res_count = (data->address[0] != 0) + (data->address[1] != 0); hwmon_device_unregister(data->hwmon_dev); pc87427_remove_files(&pdev->dev); - platform_set_drvdata(pdev, NULL); - kfree(data); - - pc87427_release_regions(pdev, res_count); return 0; } |