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| author | David Rientjes <rientjes@cs.washington.edu> | 2006-10-30 14:19:25 -0800 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-10-31 20:22:06 -0500 |
| commit | 2ceaac755423cb93c1bb2f59ebd1a06f027ac095 (patch) | |
| tree | b453d54375166f142b2cbca436689f170f3f89f9 /drivers/net/s2io.c | |
| parent | 1e1675ccf758cbb4303ab052d58405cda6c745a7 (diff) | |
| download | kernel-crypto-2ceaac755423cb93c1bb2f59ebd1a06f027ac095.tar.gz kernel-crypto-2ceaac755423cb93c1bb2f59ebd1a06f027ac095.tar.xz kernel-crypto-2ceaac755423cb93c1bb2f59ebd1a06f027ac095.zip | |
[PATCH] net s2io: return on NULL dev_alloc_skb()
Checks for NULL dev_alloc_skb() and returns on true to avoid subsequent
dereference.
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Christoph Hellwig <hch@infrared.org>
Signed-off-by: David Rientjes <rientjes@cs.washington.edu>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/s2io.c')
| -rw-r--r-- | drivers/net/s2io.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c index a231ab7d28d..33569ec9dbf 100644 --- a/drivers/net/s2io.c +++ b/drivers/net/s2io.c @@ -5985,6 +5985,11 @@ static int set_rxd_buffer_pointer(nic_t *sp, RxD_t *rxdp, buffAdd_t *ba, ((RxD3_t*)rxdp)->Buffer1_ptr = *temp1; } else { *skb = dev_alloc_skb(size); + if (!(*skb)) { + DBG_PRINT(ERR_DBG, "%s: dev_alloc_skb failed\n", + dev->name); + return -ENOMEM; + } ((RxD3_t*)rxdp)->Buffer2_ptr = *temp2 = pci_map_single(sp->pdev, (*skb)->data, dev->mtu + 4, @@ -6007,7 +6012,11 @@ static int set_rxd_buffer_pointer(nic_t *sp, RxD_t *rxdp, buffAdd_t *ba, ((RxD3_t*)rxdp)->Buffer2_ptr = *temp2; } else { *skb = dev_alloc_skb(size); - + if (!(*skb)) { + DBG_PRINT(ERR_DBG, "%s: dev_alloc_skb failed\n", + dev->name); + return -ENOMEM; + } ((RxD3_t*)rxdp)->Buffer0_ptr = *temp0 = pci_map_single(sp->pdev, ba->ba_0, BUF0_LEN, PCI_DMA_FROMDEVICE); |