From 7f3abf5c7c9a9febdd643b9d4005382144525475 Mon Sep 17 00:00:00 2001 From: Vladimir Sokolovsky Date: Wed, 5 Nov 2008 10:56:52 -0800 Subject: [PATCH] IB/mlx4: Set umem field to NULL in mlx4_ib_alloc_fast_reg_mr() 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 Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mlx4/mr.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/infiniband/hw/mlx4/mr.c b/drivers/infiniband/hw/mlx4/mr.c index 87f5c5a87b98..8e4d26d56a95 100644 --- a/drivers/infiniband/hw/mlx4/mr.c +++ b/drivers/infiniband/hw/mlx4/mr.c @@ -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; -- 2.20.1