diff options
| -rw-r--r-- | drivers/staging/comedi/drivers/mite.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 8b0f875972f5..650c6039df39 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -473,6 +473,7 @@ int mite_buf_change(struct mite_ring *ring, struct comedi_subdevice *s) { struct comedi_async *async = s->async; + struct mite_dma_desc *descs; unsigned int n_links; mite_free_dma_descs(ring); @@ -482,15 +483,15 @@ int mite_buf_change(struct mite_ring *ring, n_links = async->prealloc_bufsz >> PAGE_SHIFT; - ring->descs = - dma_alloc_coherent(ring->hw_dev, - n_links * sizeof(struct mite_dma_desc), - &ring->dma_addr, GFP_KERNEL); - if (!ring->descs) { + descs = dma_alloc_coherent(ring->hw_dev, + n_links * sizeof(*descs), + &ring->dma_addr, GFP_KERNEL); + if (!descs) { dev_err(s->device->class_dev, "mite: ring buffer allocation failed\n"); return -ENOMEM; } + ring->descs = descs; ring->n_links = n_links; return mite_init_ring_descriptors(ring, s, n_links << PAGE_SHIFT); |