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authorJiasheng Jiang <jiasheng@iscas.ac.cn>2022-03-14 04:34:48 +0300
committerDavid S. Miller <davem@davemloft.net>2022-03-15 14:01:52 +0300
commit0f74b29a4f53627376cf5a5fb7b0b3fa748a0b2b (patch)
tree11c98c1aa865bb6e2e1c8a09923acbff4c0117ad /drivers
parentc700525fcc06b05adfea78039de02628af79e07a (diff)
downloadlinux-0f74b29a4f53627376cf5a5fb7b0b3fa748a0b2b.tar.xz
atm: eni: Add check for dma_map_single
As the potential failure of the dma_map_single(), it should be better to check it and return error if fails. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/atm/eni.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c
index 422753d52244..a31ffe16e626 100644
--- a/drivers/atm/eni.c
+++ b/drivers/atm/eni.c
@@ -1112,6 +1112,8 @@ DPRINTK("iovcnt = %d\n",skb_shinfo(skb)->nr_frags);
skb_data3 = skb->data[3];
paddr = dma_map_single(&eni_dev->pci_dev->dev,skb->data,skb->len,
DMA_TO_DEVICE);
+ if (dma_mapping_error(&eni_dev->pci_dev->dev, paddr))
+ return enq_next;
ENI_PRV_PADDR(skb) = paddr;
/* prepare DMA queue entries */
j = 0;