The method was wrong because it violated the dmaengine API. For aborted transfers the complete callback should not be called. Fix the behavior and do not call the complete callback on device_terminate_all.
Fixes: 808347f6a317 ("dmaengine: at_hdmac: add DMA slave transfers") Reported-by: Peter Rosin peda@axentia.se Signed-off-by: Tudor Ambarus tudor.ambarus@microchip.com Cc: stable@vger.kernel.org Link: https://lore.kernel.org/lkml/13c6c9a2-6db5-c3bf-349b-4c127ad3496a@axentia.se... --- drivers/dma/at_hdmac.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-)
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index c445575f8646..b3895e5d2ae9 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -1879,11 +1879,8 @@ static int atc_terminate_all(struct dma_chan *chan) struct at_dma_chan *atchan = to_at_dma_chan(chan); struct at_dma *atdma = to_at_dma(chan->device); int chan_id = atchan->dma_chan.chan_id; - struct at_desc *desc, *_desc; unsigned long flags;
- LIST_HEAD(list); - dev_vdbg(chan2dev(chan), "%s\n", __func__);
/* @@ -1902,15 +1899,11 @@ static int atc_terminate_all(struct dma_chan *chan) cpu_relax();
/* active_list entries will end up before queued entries */ - list_splice_init(&atchan->queue, &list); - list_splice_init(&atchan->active_list, &list); + list_splice_tail_init(&atchan->queue, &atchan->free_list); + list_splice_tail_init(&atchan->active_list, &atchan->free_list);
spin_unlock_irqrestore(&atchan->lock, flags);
- /* Flush all pending and queued descriptors */ - list_for_each_entry_safe(desc, _desc, &list, desc_node) - atc_chain_complete(atchan, desc); - clear_bit(ATC_IS_PAUSED, &atchan->status); /* if channel dedicated to cyclic operations, free it */ clear_bit(ATC_IS_CYCLIC, &atchan->status);