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linux/drivers/infiniband/hw
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Wei Hu(Xavier) 0fbdd907e4 RDMA/hns: Avoid NULL pointer exception 
[ Upstream commit 5e437b1d7e ]

After the loop in hns_roce_v1_mr_free_work_fn function, it is possible that
all qps will have been freed (in which case ne will be 0).  If that
happens, then later in the function when we dereference hr_qp we will
get an exception.  Check ne is not 0 to make sure we actually have an
hr_qp left to work on.

This patch fixes the smatch error as below:
drivers/infiniband/hw/hns/hns_roce_hw_v1.c:1009 hns_roce_v1_mr_free_work_fn()
error: we previously assumed 'hr_qp' could be null

Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2017-12-25 14:26:30 +01:00
..
bnxt_re bnxt_re: changing the ip address shouldn't affect new connections 2017-12-14 09:53:14 +01:00
cxgb3 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cxgb4 RDMA/cxgb4: Declare stag as __be32 2017-12-20 10:10:32 +01:00
hfi1 IB/hfi1: Mask out A bit from psn trace 2017-12-20 10:10:35 +01:00
hns RDMA/hns: Avoid NULL pointer exception 2017-12-25 14:26:30 +01:00
i40iw License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mlx4 IB/mlx4: Fix RSS's QPC attributes assignments 2017-12-20 10:10:22 +01:00
mlx5 IB/mlx5: Assign send CQ and recv CQ of UMR QP 2017-12-14 09:53:14 +01:00
mthca License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nes IB: Correct MR length field to be 64-bit 2017-09-25 11:47:23 -04:00
ocrdma IB/ocrdma: fix incorrect fall-through on switch statement 2017-09-22 13:16:00 -04:00
qedr RDMA/qedr: Parse vlan priority as sl 2017-10-04 15:18:18 -04:00
qib License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
usnic License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vmw_pvrdma RDMA/vmw_pvrdma: Fix reporting correct opcodes for completion 2017-09-22 13:32:22 -04:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00