Fix pata_qdi.c probe code

There is a small typo in the probe code of pata_qdi.c, here is a patch.
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/ata/pata_qdi.c

@@ -375,7 +375,7 @@ static __init int qdi_init(void)
 				res = inb(port + 3);
 				if (res & 1) {
 					/* Single channel mode */
-					if (qdi_init_one(port, 6580, ide_port[r & 0x01], ide_irq[r & 0x01], r & 0x04))
+					if (qdi_init_one(port, 6580, ide_port[r & 0x01], ide_irq[r & 0x01], r & 0x04) == 0)
 						ct++;
 				} else {
 					/* Dual channel mode */