Input: ab8500-ponkey - 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>
diff --git a/drivers/input/misc/ab8500-ponkey.c b/drivers/input/misc/ab8500-ponkey.c
index f2fbdd8..95ef7dd 100644
--- a/drivers/input/misc/ab8500-ponkey.c
+++ b/drivers/input/misc/ab8500-ponkey.c
@@ -7,6 +7,7 @@
* AB8500 Power-On Key handler
*/
+#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
@@ -65,12 +66,14 @@
return irq_dbr;
}
- ponkey = kzalloc(sizeof(struct ab8500_ponkey), GFP_KERNEL);
- input = input_allocate_device();
- if (!ponkey || !input) {
- error = -ENOMEM;
- goto err_free_mem;
- }
+ ponkey = devm_kzalloc(&pdev->dev, sizeof(struct ab8500_ponkey),
+ GFP_KERNEL);
+ if (!ponkey)
+ return -ENOMEM;
+
+ input = devm_input_allocate_device(&pdev->dev);
+ if (!input)
+ return -ENOMEM;
ponkey->idev = input;
ponkey->ab8500 = ab8500;
@@ -82,52 +85,32 @@
input_set_capability(input, EV_KEY, KEY_POWER);
- error = request_any_context_irq(ponkey->irq_dbf, ab8500_ponkey_handler,
- 0, "ab8500-ponkey-dbf", ponkey);
+ error = devm_request_any_context_irq(&pdev->dev, ponkey->irq_dbf,
+ ab8500_ponkey_handler, 0,
+ "ab8500-ponkey-dbf", ponkey);
if (error < 0) {
dev_err(ab8500->dev, "Failed to request dbf IRQ#%d: %d\n",
ponkey->irq_dbf, error);
- goto err_free_mem;
+ return error;
}
- error = request_any_context_irq(ponkey->irq_dbr, ab8500_ponkey_handler,
- 0, "ab8500-ponkey-dbr", ponkey);
+ error = devm_request_any_context_irq(&pdev->dev, ponkey->irq_dbr,
+ ab8500_ponkey_handler, 0,
+ "ab8500-ponkey-dbr", ponkey);
if (error < 0) {
dev_err(ab8500->dev, "Failed to request dbr IRQ#%d: %d\n",
ponkey->irq_dbr, error);
- goto err_free_dbf_irq;
+ return error;
}
error = input_register_device(ponkey->idev);
if (error) {
dev_err(ab8500->dev, "Can't register input device: %d\n", error);
- goto err_free_dbr_irq;
+ return error;
}
platform_set_drvdata(pdev, ponkey);
return 0;
-
-err_free_dbr_irq:
- free_irq(ponkey->irq_dbr, ponkey);
-err_free_dbf_irq:
- free_irq(ponkey->irq_dbf, ponkey);
-err_free_mem:
- input_free_device(input);
- kfree(ponkey);
-
- return error;
-}
-
-static int ab8500_ponkey_remove(struct platform_device *pdev)
-{
- struct ab8500_ponkey *ponkey = platform_get_drvdata(pdev);
-
- free_irq(ponkey->irq_dbf, ponkey);
- free_irq(ponkey->irq_dbr, ponkey);
- input_unregister_device(ponkey->idev);
- kfree(ponkey);
-
- return 0;
}
#ifdef CONFIG_OF
@@ -144,7 +127,6 @@
.of_match_table = of_match_ptr(ab8500_ponkey_match),
},
.probe = ab8500_ponkey_probe,
- .remove = ab8500_ponkey_remove,
};
module_platform_driver(ab8500_ponkey_driver);