firewire: nosy: fix IRQ handler for card ejection
Untested, I don't have a PCILynx CardBus card.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
diff --git a/drivers/firewire/nosy.c b/drivers/firewire/nosy.c
index 57a1100..a241b62 100644
--- a/drivers/firewire/nosy.c
+++ b/drivers/firewire/nosy.c
@@ -444,6 +444,10 @@
pci_int_status = reg_read(lynx, PCI_INT_STATUS);
+ if (pci_int_status == ~0)
+ /* Card was ejected. */
+ return IRQ_NONE;
+
if ((pci_int_status & PCI_INT_INT_PEND) == 0)
/* Not our interrupt, bail out quickly. */
return IRQ_NONE;