[dpdk-dev] net/bonding: fix possible null pointer reference

[Declan Doherty]

In function check_for_bonded_ethdev the driver name is used without
validating the pointer references in the passed ethdev object.

Fixes: 740feaf349b1 ("ethdev: remove driver name from device private data")
Cc: sta...@dpdk.org

Signed-off-by: Declan Doherty <declan.dohe...@intel.com>
---
 drivers/net/bonding/rte_eth_bond_api.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/bonding/rte_eth_bond_api.c 
b/drivers/net/bonding/rte_eth_bond_api.c
index 21bcd5044..e5e146540 100644
--- a/drivers/net/bonding/rte_eth_bond_api.c
+++ b/drivers/net/bonding/rte_eth_bond_api.c
@@ -19,7 +19,10 @@ int
 check_for_bonded_ethdev(const struct rte_eth_dev *eth_dev)
 {
        /* Check valid pointer */
-       if (eth_dev->device->driver->name == NULL)
+       if (eth_dev == NULL ||
+               eth_dev->device == NULL ||
+               eth_dev->device->driver == NULL ||
+               eth_dev->device->driver->name == NULL)
                return -1;
 
        /* return 0 if driver name matches */
-- 
2.14.5