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net: hns3: fix the bug when map buffer fail

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[ Upstream commit 564883bb4d ]

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>
This commit is contained in:
Lipeng
2017-10-23 19:51:02 +08:00
committed by Greg Kroah-Hartman
parent 9409e1c775
commit 122e18d27d
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c
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@@ -1546,7 +1546,7 @@ static int hns3_reserve_buffer_map(struct hns3_enet_ring *ring,
return 0;
out_with_buf:
hns3_free_buffers(ring);
hns3_free_buffer(ring, cb);
out:
return ret;
}