ExternalVendorCode/openwrt
1
0
Fork 0
mirror of https://github.com/openwrt/openwrt.git synced 2025-02-21 09:42:09 +00:00
Code Issues Actions 4 Packages Projects Releases Wiki Activity

cns3xxx: prevent the ethernet driver from accessing uninitialized dma descriptor entries

Browse Source 
SVN-Revision: 35950
This commit is contained in:
Felix Fietkau 2013-03-10 21:59:28 +00:00
parent d22ac8d8fb
commit ee2b511e1f
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c
View File

@ -619,8 +619,9 @@ static int eth_poll(struct napi_struct *napi, int budget)
unsigned int length; unsigned int length;
unsigned int i = rx_ring->cur_index; unsigned int i = rx_ring->cur_index;
struct rx_desc *desc = &(rx_ring)->desc[i]; struct rx_desc *desc = &(rx_ring)->desc[i];
unsigned int alloc_count = rx_ring->alloc_count;
while (desc->cown) { while (desc->cown && alloc_count + received < RX_DESCS - 1) {
struct sk_buff *skb; struct sk_buff *skb;
int reserve = SKB_HEAD_ALIGN; int reserve = SKB_HEAD_ALIGN;