[PATCH] cciss: change cciss_open for consistency

Change our open to test for drv->heads like we do in other places in the
driver.  Mostly for consistency.

Signed-off-by: Mike Miller <mike.miller@hp.com>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/block/cciss.c

@@ -494,7 +494,7 @@ static int cciss_open(struct inode *inode, struct file *filep)
 	 * but I'm already using way to many device nodes to claim another one
 	 * for "raw controller".
 	 */
-	if (drv->nr_blocks == 0) {
+	if (drv->heads == 0) {
 		if (iminor(inode) != 0) {	/* not node 0? */
 			/* if not node 0 make sure it is a partition = 0 */
 			if (iminor(inode) & 0x0f) {