diff options
| author |   Steve Wise <swise@opengridcomputing.com> | 2016-10-18 14:04:39 -0700 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2016-11-16 20:10:36 -0500 |
| commit | 4ff522ea47944ffd3d4d27023ace8bc6a722c834 (patch) | |
| tree | 8f3a55cb119b4a0fc58485eb0368375a38aad56e /drivers/infiniband/hw/cxgb4/qp.c | |
| parent | Merge branches 'hfi1' and 'mlx' into k.o/for-4.9-rc (diff) | |
| download | linux-dev-4ff522ea47944ffd3d4d27023ace8bc6a722c834.tar.xz linux-dev-4ff522ea47944ffd3d4d27023ace8bc6a722c834.zip | |
iw_cxgb4: set *bad_wr for post_send/post_recv errors
There are a few cases in c4iw_post_send() and c4iw_post_receive()
where *bad_wr is not set when an error is returned. This can
cause a crash if the application tries to use bad_wr.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/qp.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c index f57deba6717c..5790e1dbd618 100644 --- a/drivers/infiniband/hw/cxgb4/qp.c +++ b/drivers/infiniband/hw/cxgb4/qp.c @@ -797,11 +797,13 @@ int c4iw_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, spin_lock_irqsave(&qhp->lock, flag); if (t4_wq_in_error(&qhp->wq)) { spin_unlock_irqrestore(&qhp->lock, flag); + *bad_wr = wr; return -EINVAL; } num_wrs = t4_sq_avail(&qhp->wq); if (num_wrs == 0) { spin_unlock_irqrestore(&qhp->lock, flag); + *bad_wr = wr; return -ENOMEM; } while (wr) { @@ -934,11 +936,13 @@ int c4iw_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, spin_lock_irqsave(&qhp->lock, flag); if (t4_wq_in_error(&qhp->wq)) { spin_unlock_irqrestore(&qhp->lock, flag); + *bad_wr = wr; return -EINVAL; } num_wrs = t4_rq_avail(&qhp->wq); if (num_wrs == 0) { spin_unlock_irqrestore(&qhp->lock, flag); + *bad_wr = wr; return -ENOMEM; } while (wr) { |