net: hns3: fix a dead loop in hclge_cmd_csq_clean

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If head has invlid value then a dead loop can be triggered in
hclge_cmd_csq_clean. This patch adds sanity check for this case.

Fixes: 68c0a5c706 ("net: hns3: Add HNS3 IMP(Integrated Mgmt Proc) Cmd
Interface Support")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Huazhong Tan 2018-05-01 19:56:03 +01:00 • committed by David S. Miller

parent 0c963e8c20

commit 3ff504908f

1 changed files with 19 additions and 0 deletions

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drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c

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