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RDMA/core: Preserve the selected source GID on failed AH modification

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When an address-handle modification fails, the core replaces its source-GID
reference. The old address then loses the reference which keeps its source
entry alive.

Fixes: 1a1f460ff1 ("RDMA: Hold the sgid_attr inside the struct ib_ah/qp")
Link: https://patch.msgid.link/20261015-ib-core-fixes-v1-1-60f6da3ddec3@nvidia.com
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
This commit is contained in:
Leon Romanovsky 2026-10-18 07:59:38 -04:00
parent 2854f9025d
commit d01ee4c841
1 changed files with 2 additions and 1 deletions
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3
drivers/infiniband/core/verbs.c
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@ -1011,7 +1011,8 @@ int rdma_modify_ah(struct ib_ah *ah, struct rdma_ah_attr *ah_attr)
ah->device->ops.modify_ah(ah, ah_attr) :
-EOPNOTSUPP;
ah->sgid_attr = rdma_update_sgid_attr(ah_attr, ah->sgid_attr);
if (!ret)
ah->sgid_attr = rdma_update_sgid_attr(ah_attr, ah->sgid_attr);
rdma_unfill_sgid_attr(ah_attr, old_sgid_attr);
return ret;
}