[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>
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index a231ab7..33569ec 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -5985,6 +5985,11 @@
((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 @@
((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);