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IB/mlx4: Set umem field to NULL in mlx4_ib_alloc_fast_reg_mr()

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Set mr->umem to NULL in mlx4_ib_alloc_fast_reg_mr(). Otherwise
ib_dereg_mr() may invoke ib_umem_release() on a random pointer value
and get an oops.

Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Vladimir Sokolovsky 2008-11-05 10:56:52 -08:00 committed by Roland Dreier
parent 7b0f5df4c8
commit 7f3abf5c7c
1 changed files with 1 additions and 0 deletions
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drivers/infiniband/hw/mlx4/mr.c
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@ -205,6 +205,7 @@ struct ib_mr *mlx4_ib_alloc_fast_reg_mr(struct ib_pd *pd,
goto err_mr;
mr->ibmr.rkey = mr->ibmr.lkey = mr->mmr.key;
mr->umem = NULL;
return &mr->ibmr;