shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-05 02:21:52 +09:00
Code Issues Packages Projects Releases Wiki Activity

net: bgmac: Fix infinite loop in bgmac_dma_tx_add()

Browse Source 
[ Upstream commit e86663c475 ]

Nothing is decrementing the index "i" while we are cleaning up the
fragments we could not successful transmit.

Fixes: 9cde94506e ("bgmac: implement scatter/gather support")
Reported-by: coverity (CID 1352048)
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Florian Fainelli
2016-07-15 15:42:52 -07:00
committed by Greg Kroah-Hartman
parent 0020fa536c
commit 863c8bb8be
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/broadcom/bgmac.c
View File

@@ -219,7 +219,7 @@ err_dma:
dma_unmap_single(dma_dev, slot->dma_addr, skb_headlen(skb),
DMA_TO_DEVICE);
while (i > 0) {
while (i-- > 0) {
int index = (ring->end + i) % BGMAC_TX_RING_SLOTS;
struct bgmac_slot_info *slot = &ring->slots[index];
u32 ctl1 = le32_to_cpu(ring->cpu_base[index].ctl1);