Merge commit 'v2.6.28-rc6' into x86/debug

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 48b5eda3ab41..42ab6d8715f2 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1250,7 +1250,8 @@ static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
                  * separate masks.
                  */
                 alignment = queue_dma_alignment(q) | q->dma_pad_mask;
-                if ((unsigned long)buf & alignment || rq->data_len & alignment
+                if ((unsigned long)buf & alignment
+                    || rq->data_len & q->dma_pad_mask
                     || object_is_on_stack(buf))
                         drive->dma = 0;
         }