[PATCH] cciss: Off-by-one error causing oops in CCISS_GETLUNIFO ioctl

This patch fixes an an "off-by-one" error found in the CCISS_GETLUNIFO
ioctl in the cciss driver.  It is cycling through the part table of the
gendisk structure which is a zero-based array, not a one-based array.  This
often causes an oops when referencing the out-of-bounds element.

Signed-off by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/block/cciss.c

@@ -809,7 +809,7 @@ static int cciss_ioctl(struct inode *inode, struct file *filep,
  		luninfo.num_opens = drv->usage_count;
  		luninfo.num_parts = 0;
  		/* count partitions 1 to 15 with sizes > 0 */
- 		for(i=1; i <MAX_PART; i++) {
+ 		for (i = 0; i < MAX_PART - 1; i++) {
 			if (!disk->part[i])
 				continue;
 			if (disk->part[i]->nr_sects != 0)