RDMA/hns: Fix uninitialized ucmd in hns_roce_create_qp_common()

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[ Upstream commit c64e9710f9 ]

ucmd in hns_roce_create_qp_common() are not initialized. But it works fine
until new member sdb_addr is added to struct hns_roce_ib_create_qp.

If the user-mode driver uses an old version ABI, then the value of the new
member will be undefined after ib_copy_from_udata().

This patch fixes it by initialize this variable to 0. And the default value
of the new member sdb_addr will be 0 which is invalid.

Fixes: 0425e3e6e0 ("RDMA/hns: Support flush cqe for hip08 in kernel space")
Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Link: https://lore.kernel.org/r/20231017125239.164455-3-huangjunxian6@hisilicon.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Chengchang Tang 2023-10-17 20:52:34 +08:00 • committed by Greg Kroah-Hartman

parent 1a9db0d265

commit d7e674b71f

1 changed files with 1 additions and 1 deletions

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drivers/infiniband/hw/hns/hns_roce_qp.c

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