From 2ceaac755423cb93c1bb2f59ebd1a06f027ac095 Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Mon, 30 Oct 2006 14:19:25 -0800 Subject: [PATCH] [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 Cc: Christoph Hellwig Signed-off-by: David Rientjes Signed-off-by: Jeff Garzik --- drivers/net/s2io.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c index a231ab7d28dd..33569ec9dbfc 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); -- 2.30.2