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chain-dma: fix potential NULL dereference #10955 #10979

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chain-dma: fix potential NULL dereference #10955 #10979

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6 changes: 6 additions & 0 deletions src/audio/chain_dma.c
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Original file line number Diff line number Diff line change
Expand Up @@ -79,6 +79,12 @@ static int chain_host_start(struct comp_dev *dev)
struct chain_dma_data *cd = comp_get_drvdata(dev);
int err;

if (!cd->chan_host || !cd->chan_host->dma) {
comp_err(dev, "incomplete initialization detected, aborting host %p",
cd->chan_host);
return -ENODEV;
}
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err = dma_start(cd->chan_host->dma->z_dev, cd->chan_host->index);
if (err < 0)
return err;
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