PCI PM & compatibility

[Benjamin Herrenschmidt <benh@kernel.crashing.org>]

Hi !

What about this patch to stay compatible with existing drivers
implementing everything in save_state ?

Ideally, we should kill save_state and fix all drivers, oh well...

(This version of the patch has correct space/tabs)

Ben.

--- a/drivers/pci/pci-driver.c	Sat Aug 23 16:39:14 2003
+++ b/drivers/pci/pci-driver.c	Sat Aug 23 16:39:14 2003
@@ -163,6 +163,9 @@
 	struct pci_dev * pci_dev = to_pci_dev(dev);
 	struct pci_driver * drv = pci_dev->driver;
 
+	/* Compatibility with drivers using obsolete save_state */
+	if (drv && drv->save_state)
+		return drv->save_state(pci_dev,state);
 	if (drv && drv->suspend)
 		return drv->suspend(pci_dev,state);
 	return 0;