cciss: return -EFAULT if copy_from_user() fails

Return -EFAULT instead of -ENOMEM if copy_from_user() fails.

Signed-off-by: Nikanth Karthikesan <[e-mail]>
Acked-by: Mike Miller <[e-mail]>
Signed-off-by: Jens Axboe <[e-mail]>

drivers/block/cciss.c

···
 				if (ioc->Request.Type.Direction == XFER_WRITE) {
 					if (copy_from_user
 					    (buff[sg_used], data_ptr, sz)) {
-						status = -ENOMEM;
+						status = -EFAULT;
 						goto cleanup1;
 					}
 				} else {