Matthew Wilcox wrote:
+static int __devinit
+advansys_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ int err, ioport;
+ struct Scsi_Host *shost;
+
+ err = pci_enable_device(pdev);
+ if (err)
+ goto fail;
+
+ ioport = pci_resource_start(pdev, 0);
+ shost = advansys_board_found(ioport, &pdev->dev, ASC_IS_PCI);
+
+ if (shost) {
+ pci_set_drvdata(pdev, shost);
+ return 0;
+ }
+
+ err = -ENODEV;
+ pci_disable_device(pdev);
+ fail:
+ return err;
minor nit:
it is far more like other Linux drivers to do
if (!shost) {
err = -ENODEV;
goto err_out_shost;
}
pci_set_drvdata(pdev, shost);
return 0;
It keeps the main, non-error path at the lowest indentation level, which
is more future-proof (easier to add more clauses later).
It also makes your PCI probe function easier to review, to ensure that
the order of initialization matches the reversed-order of shutdown in
pci_driver::remove()
Jeff
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