diff options
| author | Selvin Xavier <selvin.xavier@broadcom.com> | 2018-10-08 13:27:56 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-13 22:08:33 +0300 |
| commit | 0b27b2b27995bcd7b28db3c0697cb0437c812c2a (patch) | |
| tree | 70dce54ac3feb5ac231992d5b7b2cf71bda8b774 | |
| parent | ebd7595dcabf48e9255ca080f7c31a3cbc079010 (diff) | |
| download | linux-0b27b2b27995bcd7b28db3c0697cb0437c812c2a.tar.xz | |
RDMA/bnxt_re: Avoid accessing nq->bar_reg_iomem in failure case
[ Upstream commit ed51efd2ce44091a858ad829f666727e7c95695e ]
In the failure path, nq->bar_reg_iomem gets accessed without
initializing. Avoid this by calling the bnxt_qplib_nq_stop_irq only if the
initialization is complete.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 1ac5a4047975 ("RDMA/bnxt_re: Add bnxt_re RoCE driver")
Fixes: 6e04b1035689 ("RDMA/bnxt_re: Fix broken RoCE driver due to recent L2 driver changes")
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/infiniband/hw/bnxt_re/qplib_fp.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.c b/drivers/infiniband/hw/bnxt_re/qplib_fp.c index 6ad0d46ab879..249efa0a6aba 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_fp.c +++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.c @@ -360,7 +360,8 @@ void bnxt_qplib_disable_nq(struct bnxt_qplib_nq *nq) } /* Make sure the HW is stopped! */ - bnxt_qplib_nq_stop_irq(nq, true); + if (nq->requested) + bnxt_qplib_nq_stop_irq(nq, true); if (nq->bar_reg_iomem) iounmap(nq->bar_reg_iomem); |