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RDMA/bnxt_re: Avoid accessing nq->bar_reg_iomem in failure case

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[ Upstream commit ed51efd2ce ]

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: 1ac5a40479 ("RDMA/bnxt_re: Add bnxt_re RoCE driver")
Fixes: 6e04b10356 ("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>
This commit is contained in:
Selvin Xavier
2018-10-08 03:27:56 -07:00
committed by Greg Kroah-Hartman
parent ebd7595dca
commit 0b27b2b279
1 changed files with 2 additions and 1 deletions
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3
drivers/infiniband/hw/bnxt_re/qplib_fp.c
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@@ -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);