net/bnxt: fix crash in xstats get

We would hit a segfault in bnxt_dev_xstats_get_op() if xstats argument
is NULL, Check if the argument is NULL and return appropriately.

Fixes: bfb9c2260be2 ("net/bnxt: support xstats get/reset")
Cc: stable@dpdk.org
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Reviewed-by: Andy Gospodarek <gospo@broadcom.com>

diff --git a/drivers/net/bnxt/bnxt_stats.c b/drivers/net/bnxt/bnxt_stats.c
index 40b496a..14d355f 100644 (file)
--- a/drivers/net/bnxt/bnxt_stats.c
+++ b/drivers/net/bnxt/bnxt_stats.c
@@ -468,6 +468,9 @@ int bnxt_dev_xstats_get_op(struct rte_eth_dev *eth_dev,
        if (rc)
                return rc;
 
+       if (xstats == NULL)
+               return 0;
+
        memset(xstats, 0, sizeof(*xstats));
 
        bnxt_hwrm_port_qstats(bp);