dmaengine: virt-dma: store result on dma descriptor
This allows each virtual channel to store information about each transfer
that completed, i.e. which transfer succeeded (or which failed) and if
there was any residue data on each (completed) transfer.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
diff --git a/drivers/dma/virt-dma.c b/drivers/dma/virt-dma.c
index 88ad8ed..bf560a2 100644
--- a/drivers/dma/virt-dma.c
+++ b/drivers/dma/virt-dma.c
@@ -101,7 +101,7 @@ static void vchan_complete(unsigned long arg)
}
spin_unlock_irq(&vc->lock);
- dmaengine_desc_callback_invoke(&cb, NULL);
+ dmaengine_desc_callback_invoke(&cb, &vd->tx_result);
list_for_each_entry_safe(vd, _vd, &head, node) {
dmaengine_desc_get_callback(&vd->tx, &cb);
@@ -109,7 +109,7 @@ static void vchan_complete(unsigned long arg)
list_del(&vd->node);
vchan_vdesc_fini(vd);
- dmaengine_desc_callback_invoke(&cb, NULL);
+ dmaengine_desc_callback_invoke(&cb, &vd->tx_result);
}
}