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authorVarka Bhadram <varkabhadram@gmail.com>2014-06-11 06:34:44 +0200
committerDavid S. Miller <davem@davemloft.net>2014-06-12 00:39:19 +0200
commit0aaf43f51dc7e7f00029c90d778e895a88a90cc6 (patch)
tree7305b494d06963ec9d353c2db2ede64ed7e141e2 /drivers/net
parentceph: remove bogus extern (diff)
downloadlinux-0aaf43f51dc7e7f00029c90d778e895a88a90cc6.tar.xz
linux-0aaf43f51dc7e7f00029c90d778e895a88a90cc6.zip
mrf24j40: add device managed APIs
adds the device managed APIs so that no need worry about freeing the resources. Signed-off-by: Varka Bhadram <varkab@cdac.in> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ieee802154/mrf24j40.c33
1 files changed, 13 insertions, 20 deletions
diff --git a/drivers/net/ieee802154/mrf24j40.c b/drivers/net/ieee802154/mrf24j40.c
index 78a6552ed707..4048062011ba 100644
--- a/drivers/net/ieee802154/mrf24j40.c
+++ b/drivers/net/ieee802154/mrf24j40.c
@@ -618,12 +618,12 @@ static int mrf24j40_probe(struct spi_device *spi)
printk(KERN_INFO "mrf24j40: probe(). IRQ: %d\n", spi->irq);
- devrec = kzalloc(sizeof(struct mrf24j40), GFP_KERNEL);
+ devrec = devm_kzalloc(&spi->dev, sizeof(struct mrf24j40), GFP_KERNEL);
if (!devrec)
- goto err_devrec;
- devrec->buf = kzalloc(3, GFP_KERNEL);
+ goto err_ret;
+ devrec->buf = devm_kzalloc(&spi->dev, 3, GFP_KERNEL);
if (!devrec->buf)
- goto err_buf;
+ goto err_ret;
spi->mode = SPI_MODE_0; /* TODO: Is this appropriate for right here? */
if (spi->max_speed_hz > MAX_SPI_SPEED_HZ)
@@ -638,7 +638,7 @@ static int mrf24j40_probe(struct spi_device *spi)
devrec->dev = ieee802154_alloc_device(0, &mrf24j40_ops);
if (!devrec->dev)
- goto err_alloc_dev;
+ goto err_ret;
devrec->dev->priv = devrec;
devrec->dev->parent = &devrec->spi->dev;
@@ -676,12 +676,13 @@ static int mrf24j40_probe(struct spi_device *spi)
val &= ~0x3; /* Clear RX mode (normal) */
write_short_reg(devrec, REG_RXMCR, val);
- ret = request_threaded_irq(spi->irq,
- NULL,
- mrf24j40_isr,
- IRQF_TRIGGER_LOW|IRQF_ONESHOT,
- dev_name(&spi->dev),
- devrec);
+ ret = devm_request_threaded_irq(&spi->dev,
+ spi->irq,
+ NULL,
+ mrf24j40_isr,
+ IRQF_TRIGGER_LOW|IRQF_ONESHOT,
+ dev_name(&spi->dev),
+ devrec);
if (ret) {
dev_err(printdev(devrec), "Unable to get IRQ");
@@ -695,11 +696,7 @@ err_read_reg:
ieee802154_unregister_device(devrec->dev);
err_register_device:
ieee802154_free_device(devrec->dev);
-err_alloc_dev:
- kfree(devrec->buf);
-err_buf:
- kfree(devrec);
-err_devrec:
+err_ret:
return ret;
}
@@ -709,15 +706,11 @@ static int mrf24j40_remove(struct spi_device *spi)
dev_dbg(printdev(devrec), "remove\n");
- free_irq(spi->irq, devrec);
ieee802154_unregister_device(devrec->dev);
ieee802154_free_device(devrec->dev);
/* TODO: Will ieee802154_free_device() wait until ->xmit() is
* complete? */
- /* Clean up the SPI stuff. */
- kfree(devrec->buf);
- kfree(devrec);
return 0;
}