net/bnxt: fix a potential null pointer dereference

Coverity issue: 195046
Fixes: f7ecea911ec5 ("net/bnxt: fix interrupt handler")
Cc: stable@dpdk.org
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>

diff --git a/drivers/net/bnxt/bnxt_irq.c b/drivers/net/bnxt/bnxt_irq.c
index 79a1196..49436cf 100644 (file)
--- a/drivers/net/bnxt/bnxt_irq.c
+++ b/drivers/net/bnxt/bnxt_irq.c
@@ -50,10 +50,14 @@ static void bnxt_int_handler(void *param)
        struct rte_eth_dev *eth_dev = (struct rte_eth_dev *)param;
        struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private;
        struct bnxt_cp_ring_info *cpr = bp->def_cp_ring;
-       uint32_t raw_cons = cpr->cp_raw_cons;
-       uint32_t cons;
        struct cmpl_base *cmp;
+       uint32_t raw_cons;
+       uint32_t cons;
+
+       if (cpr == NULL)
+               return;
 
+       raw_cons = cpr->cp_raw_cons;
        while (1) {
                if (!cpr || !cpr->cp_ring_struct)
                        return;