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mfd: Use devm allocation for ab3100-core

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Allocate memory and irq for device state using devm_*
helpers to simplify memory accounting.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Linus Walleij 2012-06-12 20:26:58 +02:00 committed by Samuel Ortiz
parent 78a27cd3e8
commit 7f0f07ce25
1 changed files with 7 additions and 16 deletions
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23
drivers/mfd/ab3100-core.c
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@ -867,7 +867,7 @@ static int __devinit ab3100_probe(struct i2c_client *client,
int err;
int i;
ab3100 = kzalloc(sizeof(struct ab3100), GFP_KERNEL);
ab3100 = devm_kzalloc(&client->dev, sizeof(struct ab3100), GFP_KERNEL);
if (!ab3100) {
dev_err(&client->dev, "could not allocate AB3100 device\n");
return -ENOMEM;
@ -921,7 +921,7 @@ static int __devinit ab3100_probe(struct i2c_client *client,
/* Attach a second dummy i2c_client to the test register address */
ab3100->testreg_client = i2c_new_dummy(client->adapter,
client->addr + 1);
client->addr + 1);
if (!ab3100->testreg_client) {
err = -ENOMEM;
goto exit_no_testreg_client;
@ -931,13 +931,13 @@ static int __devinit ab3100_probe(struct i2c_client *client,
if (err)
goto exit_no_setup;
err = request_threaded_irq(client->irq, NULL, ab3100_irq_handler,
IRQF_ONESHOT, "ab3100-core", ab3100);
/* This real unpredictable IRQ is of course sampled for entropy */
rand_initialize_irq(client->irq);
err = devm_request_threaded_irq(&client->dev,
client->irq, NULL, ab3100_irq_handler,
IRQF_ONESHOT, "ab3100-core", ab3100);
if (err)
goto exit_no_irq;
/* This real unpredictable IRQ is of course sampled for entropy */
rand_initialize_irq(client->irq);
err = abx500_register_ops(&client->dev, &ab3100_ops);
if (err)
@ -962,7 +962,6 @@ static int __devinit ab3100_probe(struct i2c_client *client,
i2c_unregister_device(ab3100->testreg_client);
exit_no_testreg_client:
exit_no_detect:
kfree(ab3100);
return err;
}
@ -972,16 +971,8 @@ static int __devexit ab3100_remove(struct i2c_client *client)
/* Unregister subdevices */
mfd_remove_devices(&client->dev);
ab3100_remove_debugfs();
i2c_unregister_device(ab3100->testreg_client);
/*
* At this point, all subscribers should have unregistered
* their notifiers so deactivate IRQ
*/
free_irq(client->irq, ab3100);
kfree(ab3100);
return 0;
}