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: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 67661bbcbdd3..a6f3bc38fbe5 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -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);