Re: [PATCH 4/9] Input: pixcir_i2c_ts: Use devres managed resource allocations
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: 2013-12-18 14:15:23
Also in:
linux-input, lkml
On Wed, Dec 18, 2013 at 02:51:15PM +0530, Roger Quadros wrote:
Use devm_() and friends for allocating memory, input device and IRQ.
This one looks good, maybe have it first in the series when you resubmit.
quoted hunk ↗ jump to hunk
Signed-off-by: Roger Quadros <redacted> Acked-by: Mugunthan V N <redacted> --- drivers/input/touchscreen/pixcir_i2c_ts.c | 35 ++++++++++++------------------- 1 file changed, 13 insertions(+), 22 deletions(-)diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c index ce8abcd..3370fd9 100644 --- a/drivers/input/touchscreen/pixcir_i2c_ts.c +++ b/drivers/input/touchscreen/pixcir_i2c_ts.c@@ -346,12 +346,14 @@ static int pixcir_i2c_ts_probe(struct i2c_client *client, return -EINVAL; } - tsdata = kzalloc(sizeof(*tsdata), GFP_KERNEL); - input = input_allocate_device(); - if (!tsdata || !input) { - dev_err(&client->dev, "Failed to allocate driver data!\n"); - error = -ENOMEM; - goto err_free_mem; + tsdata = devm_kzalloc(dev, sizeof(*tsdata), GFP_KERNEL); + if (!tsdata) + return -ENOMEM; + + input = devm_input_allocate_device(dev); + if (!input) { + dev_err(&client->dev, "Failed to allocate input device\n"); + return -ENOMEM; } tsdata->client = client;@@ -378,12 +380,12 @@ static int pixcir_i2c_ts_probe(struct i2c_client *client, input_set_drvdata(input, tsdata); - error = request_threaded_irq(client->irq, NULL, pixcir_ts_isr, + error = devm_request_threaded_irq(dev, client->irq, NULL, pixcir_ts_isr, IRQF_TRIGGER_FALLING | IRQF_ONESHOT, client->name, tsdata); if (error) { - dev_err(&client->dev, "Unable to request touchscreen IRQ.\n"); - goto err_free_mem; + dev_err(dev, "failed to request irq %d\n", client->irq); + return error; } /* Always be in IDLE mode to save power, device supports auto wake */@@ -396,23 +398,16 @@ static int pixcir_i2c_ts_probe(struct i2c_client *client, /* Stop device till opened */ error = pixcir_stop(tsdata); if (error) - goto err_free_irq; + return error; error = input_register_device(input); if (error) - goto err_free_irq; + return error; i2c_set_clientdata(client, tsdata); device_init_wakeup(&client->dev, 1); return 0; - -err_free_irq: - free_irq(client->irq, tsdata); -err_free_mem: - input_free_device(input); - kfree(tsdata); - return error; } static int pixcir_i2c_ts_remove(struct i2c_client *client)@@ -423,10 +418,6 @@ static int pixcir_i2c_ts_remove(struct i2c_client *client) tsdata->exiting = true; mb(); - free_irq(client->irq, tsdata); - - input_unregister_device(tsdata->input); - kfree(tsdata); return 0; }-- 1.8.3.2
-- Dmitry