diff options
Diffstat (limited to 'drivers/net/ethernet/ti/davinci_cpdma.c')
| -rw-r--r-- | drivers/net/ethernet/ti/davinci_cpdma.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c index a377bc727740..031ebc81b50c 100644 --- a/drivers/net/ethernet/ti/davinci_cpdma.c +++ b/drivers/net/ethernet/ti/davinci_cpdma.c @@ -706,6 +706,13 @@ int cpdma_chan_submit(struct cpdma_chan *chan, void *token, void *data, } buffer = dma_map_single(ctlr->dev, data, len, chan->dir); + ret = dma_mapping_error(ctlr->dev, buffer); + if (ret) { + cpdma_desc_free(ctlr->pool, desc, 1); + ret = -EINVAL; + goto unlock_ret; + } + mode = CPDMA_DESC_OWNER | CPDMA_DESC_SOP | CPDMA_DESC_EOP; cpdma_desc_to_port(chan, mode, directed); |