From 3dc7c7badb7502ec3e3aa817a8bdd9e53aa54c52 Mon Sep 17 00:00:00 2001 From: Christophe Jaillet Date: Mon, 11 Jun 2018 20:15:11 +0200 Subject: IB/mlx4: Fix an error handling path in 'mlx4_ib_rereg_user_mr()' Before returning -EPERM we should release some resources, as already done in the other error handling path of the function. Fixes: d8f9cc328c88 ("IB/mlx4: Mark user MR as writable if actual virtual memory is writable") Signed-off-by: Christophe JAILLET Signed-off-by: Jason Gunthorpe --- drivers/infiniband/hw/mlx4/mr.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'drivers/infiniband/hw/mlx4/mr.c') diff --git a/drivers/infiniband/hw/mlx4/mr.c b/drivers/infiniband/hw/mlx4/mr.c index ed1f253faf97..c7c85c22e4e3 100644 --- a/drivers/infiniband/hw/mlx4/mr.c +++ b/drivers/infiniband/hw/mlx4/mr.c @@ -486,8 +486,11 @@ int mlx4_ib_rereg_user_mr(struct ib_mr *mr, int flags, } if (flags & IB_MR_REREG_ACCESS) { - if (ib_access_writable(mr_access_flags) && !mmr->umem->writable) - return -EPERM; + if (ib_access_writable(mr_access_flags) && + !mmr->umem->writable) { + err = -EPERM; + goto release_mpt_entry; + } err = mlx4_mr_hw_change_access(dev->dev, *pmpt_entry, convert_access(mr_access_flags)); -- cgit v1.2.1