4.14-stable review patch. If anyone has any objections, please let me know.
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From: Lipeng lipeng321@huawei.com
[ Upstream commit 564883bb4dc1a4f3cba6344e77743175694b0761 ]
If one buffer had been recieved to stack, driver will alloc a new buffer, map the buffer to device and replace the old buffer. When map fail, should only free the new alloced buffer, but not free all buffers in the ring.
Fixes: 76ad4f0 (net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC)
Signed-off-by: Lipeng lipeng321@huawei.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c @@ -1546,7 +1546,7 @@ static int hns3_reserve_buffer_map(struc return 0;
out_with_buf: - hns3_free_buffers(ring); + hns3_free_buffer(ring, cb); out: return ret; }