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7264df3886
This makes bgmac in sync with upstream verison. Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
28 lines
1.0 KiB
Diff
28 lines
1.0 KiB
Diff
From e86663c475d384ab5f46cb5637e9b7ad08c5c505 Mon Sep 17 00:00:00 2001
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From: Florian Fainelli <f.fainelli@gmail.com>
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Date: Fri, 15 Jul 2016 15:42:52 -0700
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Subject: [PATCH] net: bgmac: Fix infinite loop in bgmac_dma_tx_add()
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Nothing is decrementing the index "i" while we are cleaning up the
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fragments we could not successful transmit.
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Fixes: 9cde94506eacf ("bgmac: implement scatter/gather support")
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Reported-by: coverity (CID 1352048)
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Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/ethernet/broadcom/bgmac.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/net/ethernet/broadcom/bgmac.c
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+++ b/drivers/net/ethernet/broadcom/bgmac.c
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@@ -207,7 +207,7 @@ err_dma:
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dma_unmap_single(dma_dev, slot->dma_addr, skb_headlen(skb),
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DMA_TO_DEVICE);
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- while (i > 0) {
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+ while (i-- > 0) {
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int index = (ring->end + i) % BGMAC_TX_RING_SLOTS;
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struct bgmac_slot_info *slot = &ring->slots[index];
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u32 ctl1 = le32_to_cpu(ring->cpu_base[index].ctl1);
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