diff options
Diffstat (limited to 'drivers/dma/bcm6348-iudma.c')
| -rw-r--r-- | drivers/dma/bcm6348-iudma.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/dma/bcm6348-iudma.c b/drivers/dma/bcm6348-iudma.c index 1d3c192cfe..e7bd1b2350 100644 --- a/drivers/dma/bcm6348-iudma.c +++ b/drivers/dma/bcm6348-iudma.c @@ -324,6 +324,9 @@ static int bcm6348_iudma_receive(struct dma *dma, void **dst, void *metadata) struct bcm6348_dma_desc *dma_desc = dma_desc = ch_priv->dma_ring; int ret; + if (!ch_priv->running) + return -EINVAL; + /* get dma ring descriptor address */ dma_desc += ch_priv->desc_id; @@ -369,6 +372,9 @@ static int bcm6348_iudma_send(struct dma *dma, void *src, size_t len, struct bcm6348_dma_desc *dma_desc; uint16_t status; + if (!ch_priv->running) + return -EINVAL; + /* flush cache */ bcm6348_iudma_fdc(src, len); |