net: ethernet: ti: cpmac.c: Cleaning up missing null-terminate after strncpy call

Added a guaranteed null-terminate after call to strncpy.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/net/ethernet/ti/cpmac.c b/drivers/net/ethernet/ti/cpmac.c
index 3809f4ec2820..f9bcf7aa88ca 100644
--- a/drivers/net/ethernet/ti/cpmac.c
+++ b/drivers/net/ethernet/ti/cpmac.c
@@ -1130,6 +1130,7 @@ static int cpmac_probe(struct platform_device *pdev)
                 strncpy(mdio_bus_id, "fixed-0", MII_BUS_ID_SIZE); /* fixed phys bus */
                 phy_id = pdev->id;
         }
+        mdio_bus_id[sizeof(mdio_bus_id) - 1] = '\0';
 
         dev = alloc_etherdev_mq(sizeof(*priv), CPMAC_QUEUES);
         if (!dev)