[PATCH v3 12/32] common/cnxk: fix null pointer dereference

[Nithin Dabilpuram <ndabilpuram@marvell.com>]

From: Gowrishankar Muthukrishnan <gmuthukrishn@marvell.com>

Fix null pointer dereferences reported by klocwork.

Fixes: 4398c4092f3d ("common/cnxk: dump inline device RQ context")
Fixes: 79dc6f324e82 ("common/cnxk: add inline function for statistics")
cc: stable@dpdk.org

Signed-off-by: Gowrishankar Muthukrishnan <gmuthukrishn@marvell.com>
---
 drivers/common/cnxk/roc_nix_debug.c   | 8 +++++++-
 drivers/common/cnxk/roc_nix_inl_dev.c | 2 +-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/common/cnxk/roc_nix_debug.c b/drivers/common/cnxk/roc_nix_debug.c
index 399d0d7eae..a1c3db284b 100644
--- a/drivers/common/cnxk/roc_nix_debug.c
+++ b/drivers/common/cnxk/roc_nix_debug.c
@@ -733,7 +733,13 @@ roc_nix_queues_ctx_dump(struct roc_nix *roc_nix, FILE *file)
 	inl_rq = roc_nix_inl_dev_rq(roc_nix);
 	if (inl_rq) {
 		struct idev_cfg *idev = idev_get_cfg();
-		struct nix_inl_dev *inl_dev = idev->nix_inl_dev;
+		struct nix_inl_dev *inl_dev = NULL;
+
+		if (idev && idev->nix_inl_dev)
+			inl_dev = idev->nix_inl_dev;
+
+		if (!inl_dev)
+			return -EINVAL;
 
 		rc = nix_q_ctx_get(&inl_dev->dev, NIX_AQ_CTYPE_RQ, inl_rq->qid, &ctx);
 		if (rc) {
diff --git a/drivers/common/cnxk/roc_nix_inl_dev.c b/drivers/common/cnxk/roc_nix_inl_dev.c
index 0df148c3ed..ca948d3bc7 100644
--- a/drivers/common/cnxk/roc_nix_inl_dev.c
+++ b/drivers/common/cnxk/roc_nix_inl_dev.c
@@ -843,7 +843,7 @@ roc_nix_inl_dev_stats_get(struct roc_nix_stats *stats)
 	if (stats == NULL)
 		return NIX_ERR_PARAM;
 
-	if (!idev && idev->nix_inl_dev)
+	if (idev && idev->nix_inl_dev)
 		inl_dev = idev->nix_inl_dev;
 
 	if (!inl_dev)
-- 
2.25.1