diff options
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/fsl-edma-main.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/dma/fsl-edma-main.c b/drivers/dma/fsl-edma-main.c index 0a6e0c404027..2148a7f1ae84 100644 --- a/drivers/dma/fsl-edma-main.c +++ b/drivers/dma/fsl-edma-main.c @@ -115,6 +115,13 @@ static struct dma_chan *fsl_edma_xlate(struct of_phandle_args *dma_spec, chan->device->privatecnt++; fsl_chan = to_fsl_edma_chan(chan); fsl_chan->srcid = dma_spec->args[1]; + + if (!fsl_chan->srcid) { + dev_err(&fsl_chan->pdev->dev, "Invalidate srcid %d\n", + fsl_chan->srcid); + return NULL; + } + fsl_edma_chan_mux(fsl_chan, fsl_chan->srcid, true); mutex_unlock(&fsl_edma->fsl_edma_mutex); |