[SCSI] NCR_D700: fix IRQ handler return type

drivers/scsi/NCR_D700.c: In function `NCR_D700_probe':
drivers/scsi/NCR_D700.c:322: warning: passing argument 2 of `request_irq' from incompatible pointer type
drivers/scsi/NCR_D700.c:322: warning: passing argument 2 of `request_irq' from incompatible pointer type
drivers/scsi/NCR_D700.c:322: warning: passing argument 2 of `request_irq' from incompatible pointer type

Signed-off-by: Zhenwen Xu <helight.xu@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/NCR_D700.c b/drivers/scsi/NCR_D700.c
index c889d84..1cdf09a 100644
--- a/drivers/scsi/NCR_D700.c
+++ b/drivers/scsi/NCR_D700.c
@@ -224,7 +224,7 @@
 	return ret;
 }
 
-static int
+static irqreturn_t
 NCR_D700_intr(int irq, void *data)
 {
 	struct NCR_D700_private *p = (struct NCR_D700_private *)data;