diff options
| author | Colin Ian King <colin.king@canonical.com> | 2016-06-01 14:16:50 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-06-01 22:02:01 -0700 |
| commit | bfa49cfc526201119623de6593d284c96563bede (patch) | |
| tree | 99ec5e5b9fe2eb2bfa96d313966d22676f315787 /drivers/net/ethernet/ethoc.c | |
| parent | fc14963f249f9aca1ac84c9c8659b4f35e0a315e (diff) | |
| download | linux-bfa49cfc526201119623de6593d284c96563bede.tar.bz2 | |
net/ethoc: fix null dereference on error exit path
priv is assigned to NULL however some of the early error exit paths to
label 'free' dereference priv, causing a null pointer dereference.
Move the label 'free' to just the free_netdev statement, and add a new
exit path 'free2' for the error cases were clk_disable_unprepare needs
calling before the final free.
Fixes issue found by CoverityScan, CID#113260
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/ethoc.c')
| -rw-r--r-- | drivers/net/ethernet/ethoc.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/net/ethernet/ethoc.c b/drivers/net/ethernet/ethoc.c index 41b010645100..4edb98c3c6c7 100644 --- a/drivers/net/ethernet/ethoc.c +++ b/drivers/net/ethernet/ethoc.c @@ -1195,7 +1195,7 @@ static int ethoc_probe(struct platform_device *pdev) priv->mdio = mdiobus_alloc(); if (!priv->mdio) { ret = -ENOMEM; - goto free; + goto free2; } priv->mdio->name = "ethoc-mdio"; @@ -1208,7 +1208,7 @@ static int ethoc_probe(struct platform_device *pdev) ret = mdiobus_register(priv->mdio); if (ret) { dev_err(&netdev->dev, "failed to register MDIO bus\n"); - goto free; + goto free2; } ret = ethoc_mdio_probe(netdev); @@ -1241,9 +1241,10 @@ error2: error: mdiobus_unregister(priv->mdio); mdiobus_free(priv->mdio); -free: +free2: if (priv->clk) clk_disable_unprepare(priv->clk); +free: free_netdev(netdev); out: return ret; |