dmaengine: apple-admac: Fix grabbing of channels in of_xlate

[ Upstream commit 8454f880c24bca0d9d4bfb6ed4a4a5429a4d9b20 ]

The of_xlate callback is supposed to return the channel after already
having 'grabbed' it for private use, so fill that in.

Fixes: b127315d9a78 ("dmaengine: apple-admac: Add Apple ADMAC driver")
Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
Link: https://lore.kernel.org/r/20221019132324.8585-1-povik+lin@cutebit.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/dma/apple-admac.c b/drivers/dma/apple-admac.c
index d1f74a3aa999d77319990e41f85686a700d6356b..6780761a16403169583ee3d7d9defa61988f91ec 100644 (file)
--- a/drivers/dma/apple-admac.c
+++ b/drivers/dma/apple-admac.c
@@ -490,7 +490,7 @@ static struct dma_chan *admac_dma_of_xlate(struct of_phandle_args *dma_spec,
                return NULL;
        }
 
-       return &ad->channels[index].chan;
+       return dma_get_slave_channel(&ad->channels[index].chan);
 }
 
 static int admac_drain_reports(struct admac_data *ad, int channo)