diff options
author | Armin Wolf <W_Armin@gmx.de> | 2021-07-09 21:44:59 +0300 |
---|---|---|
committer | Guenter Roeck <linux@roeck-us.net> | 2021-08-18 00:54:25 +0300 |
commit | 964c1c91ed60dbae30ea30ebe488a6195aa5b613 (patch) | |
tree | d79776197ecc3ca9ce5437822e79c1fc9d66b8b4 /drivers/hwmon | |
parent | 129cdce3756117adcb0fced93cb926874355dbba (diff) | |
download | linux-964c1c91ed60dbae30ea30ebe488a6195aa5b613.tar.xz |
hwmon: (w83627ehf) Use platform_create_bundle
Using platform_create_bundle() simplifies the module
init code and allows w83627ehf_probe() to be marked
as __init, lowering the runtime memory footprint.
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20210709184501.6546-2-W_Armin@gmx.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r-- | drivers/hwmon/w83627ehf.c | 57 |
1 files changed, 10 insertions, 47 deletions
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c index 8618aaf32350..16aed90ca2ec 100644 --- a/drivers/hwmon/w83627ehf.c +++ b/drivers/hwmon/w83627ehf.c @@ -1694,7 +1694,7 @@ static const struct hwmon_chip_info w83627ehf_chip_info = { .info = w83627ehf_info, }; -static int w83627ehf_probe(struct platform_device *pdev) +static int __init w83627ehf_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct w83627ehf_sio_data *sio_data = dev_get_platdata(dev); @@ -2057,7 +2057,6 @@ static struct platform_driver w83627ehf_driver = { .name = DRVNAME, .pm = W83627EHF_DEV_PM_OPS, }, - .probe = w83627ehf_probe, .remove = w83627ehf_remove, }; @@ -2150,8 +2149,7 @@ static int __init w83627ehf_find(int sioaddr, unsigned short *addr, /* * when Super-I/O functions move to a separate file, the Super-I/O * bus will manage the lifetime of the device and this module will only keep - * track of the w83627ehf driver. But since we platform_device_alloc(), we - * must keep track of the device + * track of the w83627ehf driver. */ static struct platform_device *pdev; @@ -2159,7 +2157,10 @@ static int __init sensors_w83627ehf_init(void) { int err; unsigned short address; - struct resource res; + struct resource res = { + .name = DRVNAME, + .flags = IORESOURCE_IO, + }; struct w83627ehf_sio_data sio_data; /* @@ -2173,55 +2174,17 @@ static int __init sensors_w83627ehf_init(void) w83627ehf_find(0x4e, &address, &sio_data)) return -ENODEV; - err = platform_driver_register(&w83627ehf_driver); - if (err) - goto exit; - - pdev = platform_device_alloc(DRVNAME, address); - if (!pdev) { - err = -ENOMEM; - pr_err("Device allocation failed\n"); - goto exit_unregister; - } - - err = platform_device_add_data(pdev, &sio_data, - sizeof(struct w83627ehf_sio_data)); - if (err) { - pr_err("Platform data allocation failed\n"); - goto exit_device_put; - } - - memset(&res, 0, sizeof(res)); - res.name = DRVNAME; res.start = address + IOREGION_OFFSET; res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1; - res.flags = IORESOURCE_IO; err = acpi_check_resource_conflict(&res); if (err) - goto exit_device_put; + return err; - err = platform_device_add_resources(pdev, &res, 1); - if (err) { - pr_err("Device resource addition failed (%d)\n", err); - goto exit_device_put; - } + pdev = platform_create_bundle(&w83627ehf_driver, w83627ehf_probe, &res, 1, &sio_data, + sizeof(struct w83627ehf_sio_data)); - /* platform_device_add calls probe() */ - err = platform_device_add(pdev); - if (err) { - pr_err("Device addition failed (%d)\n", err); - goto exit_device_put; - } - - return 0; - -exit_device_put: - platform_device_put(pdev); -exit_unregister: - platform_driver_unregister(&w83627ehf_driver); -exit: - return err; + return PTR_ERR_OR_ZERO(pdev); } static void __exit sensors_w83627ehf_exit(void) |