diff options
author | Himangi Saraogi <himangi774@gmail.com> | 2014-05-29 00:21:56 -0700 |
---|---|---|
committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-05-29 00:26:35 -0700 |
commit | 04115e410c85b841f0f97785fe2a58d231e44890 (patch) | |
tree | 65bffaddf9999be501d6f0a23ed4b3520750c16d /drivers/input/misc | |
parent | 5ac66de5744b832530645ad82935d7357dba7afc (diff) |
Input: max8925_onkey - switch to using managed resources
Let's switch the driver to use managed resources, this will simplify
error handling and driver unbinding logic.
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/misc')
-rw-r--r-- | drivers/input/misc/max8925_onkey.c | 55 |
1 files changed, 18 insertions, 37 deletions
diff --git a/drivers/input/misc/max8925_onkey.c b/drivers/input/misc/max8925_onkey.c index eef41cfc054d..3809618e6a5d 100644 --- a/drivers/input/misc/max8925_onkey.c +++ b/drivers/input/misc/max8925_onkey.c @@ -26,6 +26,7 @@ #include <linux/interrupt.h> #include <linux/mfd/max8925.h> #include <linux/slab.h> +#include <linux/device.h> #define SW_INPUT (1 << 7) /* 0/1 -- up/down */ #define HARDRESET_EN (1 << 7) @@ -81,12 +82,14 @@ static int max8925_onkey_probe(struct platform_device *pdev) return -EINVAL; } - info = kzalloc(sizeof(struct max8925_onkey_info), GFP_KERNEL); - input = input_allocate_device(); - if (!info || !input) { - error = -ENOMEM; - goto err_free_mem; - } + info = devm_kzalloc(&pdev->dev, sizeof(struct max8925_onkey_info), + GFP_KERNEL); + if (!info) + return -ENOMEM; + + input = devm_input_allocate_device(&pdev->dev); + if (!input) + return -ENOMEM; info->idev = input; info->i2c = chip->i2c; @@ -100,55 +103,34 @@ static int max8925_onkey_probe(struct platform_device *pdev) input->dev.parent = &pdev->dev; input_set_capability(input, EV_KEY, KEY_POWER); - error = request_threaded_irq(irq[0], NULL, max8925_onkey_handler, - IRQF_ONESHOT, "onkey-down", info); + error = devm_request_threaded_irq(&pdev->dev, irq[0], NULL, + max8925_onkey_handler, IRQF_ONESHOT, + "onkey-down", info); if (error < 0) { dev_err(chip->dev, "Failed to request IRQ: #%d: %d\n", irq[0], error); - goto err_free_mem; + return error; } - error = request_threaded_irq(irq[1], NULL, max8925_onkey_handler, - IRQF_ONESHOT, "onkey-up", info); + error = devm_request_threaded_irq(&pdev->dev, irq[1], NULL, + max8925_onkey_handler, IRQF_ONESHOT, + "onkey-up", info); if (error < 0) { dev_err(chip->dev, "Failed to request IRQ: #%d: %d\n", irq[1], error); - goto err_free_irq0; + return error; } error = input_register_device(info->idev); if (error) { dev_err(chip->dev, "Can't register input device: %d\n", error); - goto err_free_irq1; + return error; } platform_set_drvdata(pdev, info); device_init_wakeup(&pdev->dev, 1); return 0; - -err_free_irq1: - free_irq(irq[1], info); -err_free_irq0: - free_irq(irq[0], info); -err_free_mem: - input_free_device(input); - kfree(info); - - return error; -} - -static int max8925_onkey_remove(struct platform_device *pdev) -{ - struct max8925_onkey_info *info = platform_get_drvdata(pdev); - struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent); - - free_irq(info->irq[0] + chip->irq_base, info); - free_irq(info->irq[1] + chip->irq_base, info); - input_unregister_device(info->idev); - kfree(info); - - return 0; } #ifdef CONFIG_PM_SLEEP @@ -190,7 +172,6 @@ static struct platform_driver max8925_onkey_driver = { .pm = &max8925_onkey_pm_ops, }, .probe = max8925_onkey_probe, - .remove = max8925_onkey_remove, }; module_platform_driver(max8925_onkey_driver); |