net: hns3: fix a dead loop in hclge_cmd_csq_clean
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: 68c0a5c7 ("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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