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-rw-r--r--block/blk-mq-dma.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/block/blk-mq-dma.c b/block/blk-mq-dma.c
index b6dbc9767596..fb018fffffdc 100644
--- a/block/blk-mq-dma.c
+++ b/block/blk-mq-dma.c
@@ -199,6 +199,7 @@ static bool blk_dma_map_iter_start(struct request *req, struct device *dma_dev,
if (blk_can_dma_map_iova(req, dma_dev) &&
dma_iova_try_alloc(dma_dev, state, vec.paddr, total_len))
return blk_rq_dma_map_iova(req, dma_dev, state, iter, &vec);
+ memset(state, 0, sizeof(*state));
return blk_dma_map_direct(req, dma_dev, iter, &vec);
}