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path: root/drivers/dma/ioat/dma.c
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Diffstat (limited to 'drivers/dma/ioat/dma.c')
-rw-r--r--drivers/dma/ioat/dma.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index 32a757be75c..c524d36d3c2 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -251,12 +251,12 @@ static dma_cookie_t ioat1_tx_submit(struct dma_async_tx_descriptor *tx)
dev_dbg(to_dev(&ioat->base), "%s: cookie: %d\n", __func__, cookie);
/* write address into NextDescriptor field of last desc in chain */
- first = to_ioat_desc(tx->tx_list.next);
+ first = to_ioat_desc(desc->tx_list.next);
chain_tail = to_ioat_desc(ioat->used_desc.prev);
/* make descriptor updates globally visible before chaining */
wmb();
chain_tail->hw->next = first->txd.phys;
- list_splice_tail_init(&tx->tx_list, &ioat->used_desc);
+ list_splice_tail_init(&desc->tx_list, &ioat->used_desc);
dump_desc_dbg(ioat, chain_tail);
dump_desc_dbg(ioat, first);
@@ -298,6 +298,7 @@ ioat_dma_alloc_descriptor(struct ioat_dma_chan *ioat, gfp_t flags)
memset(desc, 0, sizeof(*desc));
+ INIT_LIST_HEAD(&desc_sw->tx_list);
dma_async_tx_descriptor_init(&desc_sw->txd, &ioat->base.common);
desc_sw->txd.tx_submit = ioat1_tx_submit;
desc_sw->hw = desc;
@@ -522,7 +523,7 @@ ioat1_dma_prep_memcpy(struct dma_chan *c, dma_addr_t dma_dest,
desc->txd.flags = flags;
desc->len = total_len;
- list_splice(&chain, &desc->txd.tx_list);
+ list_splice(&chain, &desc->tx_list);
hw->ctl_f.int_en = !!(flags & DMA_PREP_INTERRUPT);
hw->ctl_f.compl_write = 1;
hw->tx_cnt = tx_cnt;