diff options
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/mxs-dma.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c index 88aad4f54002..2870d919f112 100644 --- a/drivers/dma/mxs-dma.c +++ b/drivers/dma/mxs-dma.c @@ -327,10 +327,12 @@ static int mxs_dma_alloc_chan_resources(struct dma_chan *chan) memset(mxs_chan->ccw, 0, PAGE_SIZE); - ret = request_irq(mxs_chan->chan_irq, mxs_dma_int_handler, - 0, "mxs-dma", mxs_dma); - if (ret) - goto err_irq; + if (mxs_chan->chan_irq != NO_IRQ) { + ret = request_irq(mxs_chan->chan_irq, mxs_dma_int_handler, + 0, "mxs-dma", mxs_dma); + if (ret) + goto err_irq; + } ret = clk_enable(mxs_dma->clk); if (ret) |