diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2021-10-25 09:54:28 +0200 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-10-28 22:53:54 +0530 |
| commit | 1825ecc908d4e77735a993a72406e04e9dfbe5eb (patch) | |
| tree | 1ed52512c2733eeffd550abfcfc8bcffb26e955b /drivers/dma/xilinx | |
| parent | a63ddc38571ef32eb396eb81f50dca1c8d9b2432 (diff) | |
dmaengine: zynqmp_dma: Correctly handle descriptor callbacks
DMA clients can provide one of two types of callbacks. For this reason
dmaengine drivers should not directly invoke `callback`, but always use
`dmaengine_desc_callback_invoke()`. This makes sure that both types of
callbacks are handled correctly.
The zynqmp_dma driver currently doesn't do this and only handles the
`callback` type callback. If the client used the `callback_result` type
callback it will not be called.
Fix this by switching to `dmaengine_desc_callback_valid()` and
`dmaengine_desc_callback_invoke()`.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20211025075428.2094-3-lars@metafoo.de
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/xilinx')
| -rw-r--r-- | drivers/dma/xilinx/zynqmp_dma.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/dma/xilinx/zynqmp_dma.c b/drivers/dma/xilinx/zynqmp_dma.c index 54adac6391ef..7aa63b652027 100644 --- a/drivers/dma/xilinx/zynqmp_dma.c +++ b/drivers/dma/xilinx/zynqmp_dma.c @@ -605,14 +605,12 @@ static void zynqmp_dma_chan_desc_cleanup(struct zynqmp_dma_chan *chan) spin_lock_irqsave(&chan->lock, irqflags); list_for_each_entry_safe(desc, next, &chan->done_list, node) { - dma_async_tx_callback callback; - void *callback_param; + struct dmaengine_desc_callback cb; - callback = desc->async_tx.callback; - callback_param = desc->async_tx.callback_param; - if (callback) { + dmaengine_desc_get_callback(&desc->async_tx, &cb); + if (dmaengine_desc_callback_valid(&cb)) { spin_unlock_irqrestore(&chan->lock, irqflags); - callback(callback_param); + dmaengine_desc_callback_invoke(&cb, NULL); spin_lock_irqsave(&chan->lock, irqflags); } |