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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2022-01-18 12:11:04 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-02-08 20:34:07 +0300 |
| commit | 2989ba9532babac66e79997ccff73c015b69700c (patch) | |
| tree | f6d422078181fec1387fa2c97ea2c27ba46dc6be /drivers/infiniband/sw | |
| parent | 2923948ffe0835f7114e948b35bcc42bc9b3baa1 (diff) | |
| download | linux-2989ba9532babac66e79997ccff73c015b69700c.tar.xz | |
RDMA/siw: Fix refcounting leak in siw_create_qp()
commit a75badebfdc0b3823054bedf112edb54d6357c75 upstream.
The atomic_inc() needs to be paired with an atomic_dec() on the error
path.
Fixes: 514aee660df4 ("RDMA: Globally allocate and release QP memory")
Link: https://lore.kernel.org/r/20220118091104.GA11671@kili
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Bernard Metzler <bmt@zurich.ibm.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/infiniband/sw')
| -rw-r--r-- | drivers/infiniband/sw/siw/siw_verbs.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/infiniband/sw/siw/siw_verbs.c b/drivers/infiniband/sw/siw/siw_verbs.c index 1b36350601fa..aa3f60d54a70 100644 --- a/drivers/infiniband/sw/siw/siw_verbs.c +++ b/drivers/infiniband/sw/siw/siw_verbs.c @@ -311,7 +311,8 @@ int siw_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *attrs, if (atomic_inc_return(&sdev->num_qp) > SIW_MAX_QP) { siw_dbg(base_dev, "too many QP's\n"); - return -ENOMEM; + rv = -ENOMEM; + goto err_atomic; } if (attrs->qp_type != IB_QPT_RC) { siw_dbg(base_dev, "only RC QP's supported\n"); |