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path: root/drivers/net/ethernet
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Diffstat (limited to 'drivers/net/ethernet')
-rw-r--r--drivers/net/ethernet/ti/davinci_cpdma.c7
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 49dfd592ac1..053c84fd085 100644
--- a/drivers/net/ethernet/ti/davinci_cpdma.c
+++ b/drivers/net/ethernet/ti/davinci_cpdma.c
@@ -705,6 +705,13 @@ 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);