diff options
| author | Florian Fainelli <f.fainelli@gmail.com> | 2016-07-15 15:42:52 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-08-16 09:30:47 +0200 |
| commit | 863c8bb8be39ad11f0d9d66a431b3d9ca5c11dd7 (patch) | |
| tree | 0e6cb330cd83c7051c5643ac4a32870e09a0af3a /drivers | |
| parent | 0020fa536cc610216f80b798b9a1c9b13c3a37fb (diff) | |
net: bgmac: Fix infinite loop in bgmac_dma_tx_add()
[ Upstream commit e86663c475d384ab5f46cb5637e9b7ad08c5c505 ]
Nothing is decrementing the index "i" while we are cleaning up the
fragments we could not successful transmit.
Fixes: 9cde94506eacf ("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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bgmac.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c index 28f7610b03fe..c32f5d32f811 100644 --- a/drivers/net/ethernet/broadcom/bgmac.c +++ b/drivers/net/ethernet/broadcom/bgmac.c @@ -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); |