1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 354c91d06a6d..310e497b5838 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1207,9 +1207,13 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
 end_request:
         if (blk_pc_request(rq)) {
                 unsigned long flags;
+                unsigned int dlen = rq->data_len;
+
+                if (dma)
+                        rq->data_len = 0;
 
                 spin_lock_irqsave(&ide_lock, flags);
-                if (__blk_end_request(rq, 0, rq->data_len))
+                if (__blk_end_request(rq, 0, dlen))
                         BUG();
                 HWGROUP(drive)->rq = NULL;
                 spin_unlock_irqrestore(&ide_lock, flags);