lkml.org 
[lkml]   [2016]   [Aug]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4.4 114/138] IB/mlx4: Fix memory leak if QP creation failed
Date
4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dotan Barak <dotanb@dev.mellanox.co.il>

commit 5b420d9cf7382c6e1512e96e02d18842d272049c upstream.

When RC, UC, or RAW QPs are created, a qp object is allocated (kzalloc).
If at a later point (in procedure create_qp_common) the qp creation fails,
this qp object must be freed.

Fixes: 1ffeb2eb8be99 ("IB/mlx4: SR-IOV IB context objects and proxy/tunnel SQP support")
Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/infiniband/hw/mlx4/qp.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -1162,8 +1162,10 @@ struct ib_qp *mlx4_ib_create_qp(struct i
{
err = create_qp_common(to_mdev(pd->device), pd, init_attr,
udata, 0, &qp, gfp);
- if (err)
+ if (err) {
+ kfree(qp);
return ERR_PTR(err);
+ }

qp->ibqp.qp_num = qp->mqp.qpn;
qp->xrcdn = xrcdn;

\
 
 \ /
  Last update: 2016-09-17 09:57    [W:0.039 / U:0.052 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site