Messages in this thread Patch in this message | | | From | Laxman Dewangan <> | Subject | [PATCH V2 1/6] mfd: tps6586x:use devm managed resources | Date | Mon, 16 Jul 2012 12:21:45 +0530 |
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Allocate memory for device state using devm_kzalloc(), get the IRQ using devm_request_irq(). All to simplify accounting and letting the kernel do the garbage-collection.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> --- Changes V1 -> V2: No change, generated new patch for V2 series.
drivers/mfd/tps6586x.c | 23 ++++++++--------------- 1 files changed, 8 insertions(+), 15 deletions(-)
diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c index c84b550..1256b7f 100644 --- a/drivers/mfd/tps6586x.c +++ b/drivers/mfd/tps6586x.c @@ -432,8 +432,8 @@ static int __devinit tps6586x_irq_init(struct tps6586x *tps6586x, int irq, #endif } - ret = request_threaded_irq(irq, NULL, tps6586x_irq, IRQF_ONESHOT, - "tps6586x", tps6586x); + ret = devm_request_threaded_irq(tps6586x->dev, irq, NULL, tps6586x_irq, + IRQF_ONESHOT, "tps6586x", tps6586x); if (!ret) { device_init_wakeup(tps6586x->dev, 1); @@ -579,9 +579,11 @@ static int __devinit tps6586x_i2c_probe(struct i2c_client *client, dev_info(&client->dev, "VERSIONCRC is %02x\n", ret); - tps6586x = kzalloc(sizeof(struct tps6586x), GFP_KERNEL); - if (tps6586x == NULL) + tps6586x = devm_kzalloc(&client->dev, sizeof(*tps6586x), GFP_KERNEL); + if (tps6586x == NULL) { + dev_err(&client->dev, "memory for tps6586x alloc failed\n"); return -ENOMEM; + } tps6586x->client = client; tps6586x->dev = &client->dev; @@ -594,14 +596,14 @@ static int __devinit tps6586x_i2c_probe(struct i2c_client *client, pdata->irq_base); if (ret) { dev_err(&client->dev, "IRQ init failed: %d\n", ret); - goto err_irq_init; + return ret; } } ret = tps6586x_gpio_init(tps6586x, pdata->gpio_base); if (ret) { dev_err(&client->dev, "GPIO registration failed: %d\n", ret); - goto err_gpio_init; + return ret; } ret = tps6586x_add_subdevs(tps6586x, pdata); @@ -619,11 +621,6 @@ err_add_devs: dev_err(&client->dev, "Can't remove gpio chip: %d\n", ret); } -err_gpio_init: - if (client->irq) - free_irq(client->irq, tps6586x); -err_irq_init: - kfree(tps6586x); return ret; } @@ -633,9 +630,6 @@ static int __devexit tps6586x_i2c_remove(struct i2c_client *client) struct tps6586x_platform_data *pdata = client->dev.platform_data; int ret; - if (client->irq) - free_irq(client->irq, tps6586x); - if (pdata->gpio_base) { ret = gpiochip_remove(&tps6586x->gpio); if (ret) @@ -644,7 +638,6 @@ static int __devexit tps6586x_i2c_remove(struct i2c_client *client) } tps6586x_remove_subdevs(tps6586x); - kfree(tps6586x); return 0; } -- 1.7.1.1
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