ChangeSet 1.2270, 2005/03/31 08:39:42-08:00, [EMAIL PROTECTED]
[PATCH] paport oops fix
It appears that the parport driver claims on-board superio devices
without
actually doing anything. When the driver is removed, we try to
dereference
non-existent driver data to unregister the ports. Since we didn't
register
anything, it's safe to ignore these devices in the remove function.
Signed-off-by: Russell King <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
parport_pc.c | 8 +++++---
1 files changed, 5 insertions(+), 3 deletions(-)
diff -Nru a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c
--- a/drivers/parport/parport_pc.c 2005-03-31 10:20:16 -08:00
+++ b/drivers/parport/parport_pc.c 2005-03-31 10:20:16 -08:00
@@ -2976,10 +2976,12 @@
pci_set_drvdata(dev, NULL);
- for (i = data->num - 1; i >= 0; i--)
- parport_pc_unregister_port(data->ports[i]);
+ if (data) {
+ for (i = data->num - 1; i >= 0; i--)
+ parport_pc_unregister_port(data->ports[i]);
- kfree(data);
+ kfree(data);
+ }
}
static struct pci_driver parport_pc_pci_driver = {
-
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