i2c: i801: Use managed devm_* memory and irq allocation
This simplifies the error and remove paths.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 5f827df..b1d725d 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -1138,7 +1138,7 @@
int err, i;
struct i801_priv *priv;
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ priv = devm_kzalloc(&dev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
@@ -1253,8 +1253,9 @@
if (priv->features & FEATURE_IRQ) {
init_waitqueue_head(&priv->waitq);
- err = request_irq(dev->irq, i801_isr, IRQF_SHARED,
- dev_driver_string(&dev->dev), priv);
+ err = devm_request_irq(&dev->dev, dev->irq, i801_isr,
+ IRQF_SHARED,
+ dev_driver_string(&dev->dev), priv);
if (err) {
dev_err(&dev->dev, "Failed to allocate irq %d: %d\n",
dev->irq, err);
@@ -1275,7 +1276,7 @@
err = i2c_add_adapter(&priv->adapter);
if (err) {
dev_err(&dev->dev, "Failed to add SMBus adapter\n");
- goto exit_free_irq;
+ goto exit_release;
}
i801_probe_optional_slaves(priv);
@@ -1286,12 +1287,9 @@
return 0;
-exit_free_irq:
- if (priv->features & FEATURE_IRQ)
- free_irq(dev->irq, priv);
+exit_release:
pci_release_region(dev, SMBBAR);
exit:
- kfree(priv);
return err;
}
@@ -1303,11 +1301,8 @@
i2c_del_adapter(&priv->adapter);
pci_write_config_byte(dev, SMBHSTCFG, priv->original_hstcfg);
- if (priv->features & FEATURE_IRQ)
- free_irq(dev->irq, priv);
pci_release_region(dev, SMBBAR);
- kfree(priv);
/*
* do not call pci_disable_device(dev) since it can cause hard hangs on
* some systems during power-off (eg. Fujitsu-Siemens Lifebook E8010)