From: Leon Romanovsky <leonro@xxxxxxxxxx>
The check for the NULL of pointer received from container_of is
incorrect by definition as it points to some random memory.
Change such check with proper NULL check of SIW QP attributes.
Fixes: 303ae1cdfdf7 ("rdma/siw: application interface")
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxx>
---
drivers/infiniband/sw/siw/siw_verbs.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/infiniband/sw/siw/siw_verbs.c b/drivers/infiniband/sw/siw/siw_verbs.c
index d2313efb26db..917c8a919f38 100644
--- a/drivers/infiniband/sw/siw/siw_verbs.c
+++ b/drivers/infiniband/sw/siw/siw_verbs.c
@@ -300,7 +300,6 @@ struct ib_qp *siw_create_qp(struct ib_pd *pd,
struct siw_ucontext *uctx =
rdma_udata_to_drv_context(udata, struct siw_ucontext,
base_ucontext);
- struct siw_cq *scq = NULL, *rcq = NULL;
unsigned long flags;
int num_sqe, num_rqe, rv = 0;
size_t length;
@@ -343,10 +342,8 @@ struct ib_qp *siw_create_qp(struct ib_pd *pd,
rv = -EINVAL;
goto err_out;
}
- scq = to_siw_cq(attrs->send_cq);
- rcq = to_siw_cq(attrs->recv_cq);
- if (!scq || (!rcq && !attrs->srq)) {
+ if (!attrs->send_cq || (!attrs->recv_cq && !attrs->srq)) {
siw_dbg(base_dev, "send CQ or receive CQ invalid\n");
rv = -EINVAL;
goto err_out;
@@ -401,8 +398,8 @@ struct ib_qp *siw_create_qp(struct ib_pd *pd,
}
}
qp->pd = pd;
- qp->scq = scq;
- qp->rcq = rcq;
+ qp->scq = to_siw_cq(attrs->send_cq);
+ qp->rcq = to_siw_cq(attrs->recv_cq);
if (attrs->srq) {
/*
--
2.31.1
