bna: check for dma mapping errors

[cascardo/linux.git] / block / blk-merge.c

diff --git a/block/blk-merge.c b/block/blk-merge.c
index b262527..d088cff 100644 (file)
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -393,7 +393,7 @@ int blk_rq_map_sg(struct request_queue *q, struct request *rq,
                if (rq->cmd_flags & REQ_WRITE)
                        memset(q->dma_drain_buffer, 0, q->dma_drain_size);
 
-               sg->page_link &= ~0x02;
+               sg_unmark_end(sg);
                sg = sg_next(sg);
                sg_set_page(sg, virt_to_page(q->dma_drain_buffer),
                            q->dma_drain_size,