On Wed, Aug 04, 2021 at 08:59:39PM +0800, YueHaibing wrote:

If re-registering an MR in hns_roce_rereg_user_mr(), we should
return NULL instead of pass 0 to ERR_PTR.

Fixes: 4e9fc1dae2a9 ("RDMA/hns: Optimize the MR registration process")
Signed-off-by: YueHaibing <redacted>
 drivers/infiniband/hw/hns/hns_roce_mr.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Applied to for-next, though hns should be checked to ensure MRs are
not left in some broken state after rereg failure.

Thanks,
Jason