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Commit ae944717 authored by Jean Delvare's avatar Jean Delvare Committed by Wolfram Sang
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i2c: i801: Fallback to polling if request_irq() fails 



The i2c-i801 driver can work without interrupts, so there is no reason
to make a request_irq failure fatal. Instead we can simply fallback
to polling.

Signed-off-by: default avatarJean Delvare <jdelvare@suse.de>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
parent b3b8df97

drivers/i2c/busses/i2c-i801.c

+3 −3
Original line number Diff line number Diff line
@@ -1239,10 +1239,11 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id) 
		if (err) {

			dev_err(&dev->dev, "Failed to allocate irq %d: %d\n",

				dev->irq, err);

			goto exit_release;

			priv->features &= ~FEATURE_IRQ;

		}

		dev_info(&dev->dev, "SMBus using PCI Interrupt\n");

	}

	dev_info(&dev->dev, "SMBus using %s\n",

		 priv->features & FEATURE_IRQ ? "PCI interrupt" : "polling");



	/* set up the sysfs linkage to our parent device */

	priv->adapter.dev.parent = &dev->dev;
@@ -1269,7 +1270,6 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id) 
exit_free_irq:

	if (priv->features & FEATURE_IRQ)

		free_irq(dev->irq, priv);

exit_release:

	pci_release_region(dev, SMBBAR);

exit:

	kfree(priv);