[dpdk-dev] [PATCH v3 10/15] net/bnxt: avoid null pointer dereference

[Ajit Khaparde]

From: Lance Richardson <lance.richardson at broadcom.com>

Avoid null pointer dereference when allocating an insolated
completion ring by basing nq ring allocation on whether an
nq ring was requested instead of whether the device supports
nq rings.

Fixes: f8168ca0e690 ("net/bnxt: support thor controller")
Signed-off-by: Lance Richardson <lance.richardson at broadcom.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
---
 drivers/net/bnxt/bnxt_ring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/bnxt/bnxt_ring.c b/drivers/net/bnxt/bnxt_ring.c
index faf861cc1..ada748c05 100644
--- a/drivers/net/bnxt/bnxt_ring.c
+++ b/drivers/net/bnxt/bnxt_ring.c
@@ -280,7 +280,7 @@ int bnxt_alloc_rings(struct bnxt *bp, uint16_t qidx,
 	}
 	cp_ring_info->hw_stats_ctx_id = HWRM_NA_SIGNATURE;
 
-	if (BNXT_HAS_NQ(bp)) {
+	if (nq_ring_info) {
 		struct bnxt_ring *nq_ring = nq_ring_info->cp_ring_struct;
 
 		nq_ring->bd = (char *)mz->addr + nq_ring_start;
-- 
2.20.1 (Apple Git-117)