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path: root/drivers/atm/fore200e.c
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Diffstat (limited to 'drivers/atm/fore200e.c')
-rw-r--r--drivers/atm/fore200e.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/atm/fore200e.c b/drivers/atm/fore200e.c
index 7eda1a8c3d8c..2b5dc8fe1d85 100644
--- a/drivers/atm/fore200e.c
+++ b/drivers/atm/fore200e.c
@@ -195,6 +195,10 @@ fore200e_chunk_alloc(struct fore200e* fore200e, struct chunk* chunk, int size, i
chunk->dma_addr = dma_map_single(fore200e->dev, chunk->align_addr,
size, direction);
+ if (dma_mapping_error(fore200e->dev, chunk->dma_addr)) {
+ kfree(chunk->alloc_addr);
+ return -ENOMEM;
+ }
return 0;
}
@@ -576,6 +580,8 @@ fore200e_pca_prom_read(struct fore200e* fore200e, struct prom_data* prom)
prom_dma = dma_map_single(fore200e->dev, prom, sizeof(struct prom_data),
DMA_FROM_DEVICE);
+ if (dma_mapping_error(fore200e->dev, prom_dma))
+ return -ENOMEM;
fore200e->bus->write(prom_dma, &entry->cp_entry->cmd.prom_block.prom_haddr);
@@ -1597,6 +1603,11 @@ fore200e_send(struct atm_vcc *vcc, struct sk_buff *skb)
tpd = entry->tpd;
tpd->tsd[ 0 ].buffer = dma_map_single(fore200e->dev, data, tx_len,
DMA_TO_DEVICE);
+ if (dma_mapping_error(fore200e->dev, tpd->tsd[0].buffer)) {
+ if (tx_copy)
+ kfree(data);
+ return -ENOMEM;
+ }
tpd->tsd[ 0 ].length = tx_len;
FORE200E_NEXT_ENTRY(txq->head, QUEUE_SIZE_TX);
@@ -1671,6 +1682,8 @@ fore200e_getstats(struct fore200e* fore200e)
stats_dma_addr = dma_map_single(fore200e->dev, fore200e->stats,
sizeof(struct stats), DMA_FROM_DEVICE);
+ if (dma_mapping_error(fore200e->dev, stats_dma_addr))
+ return -ENOMEM;
FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD);