diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index f291587d753e..233e06c29ff4 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -2834,6 +2834,8 @@ static int cciss_revalidate(struct gendisk *disk)
 	InquiryData_struct *inq_buff = NULL;
 
 	for (logvol = 0; logvol < CISS_MAX_LUN; logvol++) {
+		if (!h->drv[logvol])
+			continue
 		if (memcmp(h->drv[logvol]->LunID, drv->LunID,
 			sizeof(drv->LunID)) == 0) {
 			FOUND = 1;