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authorNatalia Petrova <n.petrova@fintech.ru>2023-03-03 15:44:08 +0300
committerLeon Romanovsky <leon@kernel.org>2023-03-14 11:57:01 +0200
commitb73a0b80c69de77d8d4942abb37066531c0169b2 (patch)
tree1a9dc214c0d22486b66b230070319e39341d0bb1
parentf2f6e1661d38fbce6163fc321395e9de24a9529b (diff)
RDMA/rdmavt: Delete unnecessary NULL check
There is no need to check 'rdi->qp_dev' for NULL. The field 'qp_dev' is created in rvt_register_device() which will fail if the 'qp_dev' allocation fails in rvt_driver_qp_init(). Overwise this pointer doesn't changed and passed to rvt_qp_exit() by the next step. Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: 0acb0cc7ecc1 ("IB/rdmavt: Initialize and teardown of qpn table") Signed-off-by: Natalia Petrova <n.petrova@fintech.ru> Link: https://lore.kernel.org/r/20230303124408.16685-1-n.petrova@fintech.ru Signed-off-by: Leon Romanovsky <leon@kernel.org>
-rw-r--r--drivers/infiniband/sw/rdmavt/qp.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/infiniband/sw/rdmavt/qp.c b/drivers/infiniband/sw/rdmavt/qp.c
index 3f707e1fa517..2d143a9d2027 100644
--- a/drivers/infiniband/sw/rdmavt/qp.c
+++ b/drivers/infiniband/sw/rdmavt/qp.c
@@ -464,8 +464,6 @@ void rvt_qp_exit(struct rvt_dev_info *rdi)
if (qps_inuse)
rvt_pr_err(rdi, "QP memory leak! %u still in use\n",
qps_inuse);
- if (!rdi->qp_dev)
- return;
kfree(rdi->qp_dev->qp_table);
free_qpn_table(&rdi->qp_dev->qpn_table);