[PATCH for-rc 03/10] RDMA/bnxt_re: Fix incorrect dereference of srq in async event

[Selvin Xavier <selvin.xavier@broadcom.com>]

From: Kashyap Desai <kashyap.desai@broadcom.com>

Currently driver is not getting correct srq. Dereference only if
qplib has a valid srq.

Fixes: b02fd3f79ec3 ("RDMA/bnxt_re: Report async events and errors")
Reviewed-by: Saravanan Vajravel <saravanan.vajravel@broadcom.com>
Reviewed-by: Chandramohan Akula <chandramohan.akula@broadcom.com>
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
---
 drivers/infiniband/hw/bnxt_re/main.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c
index 686e405..dd39948 100644
--- a/drivers/infiniband/hw/bnxt_re/main.c
+++ b/drivers/infiniband/hw/bnxt_re/main.c
@@ -1028,12 +1028,15 @@ static int bnxt_re_handle_unaffi_async_event(struct creq_func_event
 static int bnxt_re_handle_qp_async_event(struct creq_qp_event *qp_event,
 					 struct bnxt_re_qp *qp)
 {
-	struct bnxt_re_srq *srq = container_of(qp->qplib_qp.srq, struct bnxt_re_srq,
-					       qplib_srq);
 	struct creq_qp_error_notification *err_event;
+	struct bnxt_re_srq *srq = NULL;
 	struct ib_event event = {};
 	unsigned int flags;
 
+	if (qp->qplib_qp.srq)
+		srq =  container_of(qp->qplib_qp.srq, struct bnxt_re_srq,
+				    qplib_srq);
+
 	if (qp->qplib_qp.state == CMDQ_MODIFY_QP_NEW_STATE_ERR &&
 	    rdma_is_kernel_res(&qp->ib_qp.res)) {
 		flags = bnxt_re_lock_cqs(qp);
-- 
2.5.5