If a card has no IRQ then pass no interrupt handler but allow polled
usage.
Signed-off-by: Alan Cox <alan@xxxxxxxxxx>
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.24-rc2-mm1/drivers/ata/pata_isapnp.c linux-2.6.24-rc2-mm1/drivers/ata/pata_isapnp.c
--- linux.vanilla-2.6.24-rc2-mm1/drivers/ata/pata_isapnp.c 2007-11-16 17:54:39.000000000 +0000
+++ linux-2.6.24-rc2-mm1/drivers/ata/pata_isapnp.c 2007-11-16 18:14:29.000000000 +0000
@@ -75,13 +75,16 @@
struct ata_host *host;
struct ata_port *ap;
void __iomem *cmd_addr, *ctl_addr;
+ int irq = 0;
+ irq_handler_t handler = NULL;
if (pnp_port_valid(idev, 0) == 0)