PCI: Check dynids driver_data value for validity
Only accept dynids whose driver_data value matches one of the driver's
pci_driver_id entries. This prevents the user from accidentally passing
values the drivers do not expect.
Cc: Milton Miller <[email protected]>
Acked-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Jean Delvare <[email protected]>
Signed-off-by: Jesse Barnes <[email protected]>
diff --git a/Documentation/PCI/pci.txt b/Documentation/PCI/pci.txt
index 8d4dc62..fd4907a 100644
--- a/Documentation/PCI/pci.txt
+++ b/Documentation/PCI/pci.txt
@@ -163,6 +163,10 @@
o class and classmask fields default to 0
o driver_data defaults to 0UL.
+Note that driver_data must match the value used by any of the pci_device_id
+entries defined in the driver. This makes the driver_data field mandatory
+if all the pci_device_id entries have a non-zero driver_data value.
+
Once added, the driver probe routine will be invoked for any unclaimed
PCI devices listed in its (newly updated) pci_ids list.
