diff options
| author | xypron.glpk@gmx.de <xypron.glpk@gmx.de> | 2017-05-16 05:07:01 +0200 |
|---|---|---|
| committer | Joe Hershberger <joe.hershberger@ni.com> | 2017-06-02 14:44:19 -0500 |
| commit | c08248d601e939ababe1642d11be63d0c14c7d1a (patch) | |
| tree | d7a9a4232cc9720b7f51129a10632e8e5c90d400 /net | |
| parent | 96d1d84c79b63e5882f09be451227f7145ea8599 (diff) | |
net: core: avoid possible NULL pointer dereference
Checking if dev is NULL after dereferencing it does not make sense.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/eth-uclass.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/eth-uclass.c b/net/eth-uclass.c index c3cc3152a2..b659961a5d 100644 --- a/net/eth-uclass.c +++ b/net/eth-uclass.c @@ -181,7 +181,7 @@ int eth_get_dev_index(void) static int eth_write_hwaddr(struct udevice *dev) { - struct eth_pdata *pdata = dev->platdata; + struct eth_pdata *pdata; int ret = 0; if (!dev || !device_active(dev)) @@ -189,6 +189,7 @@ static int eth_write_hwaddr(struct udevice *dev) /* seq is valid since the device is active */ if (eth_get_ops(dev)->write_hwaddr && !eth_mac_skip(dev->seq)) { + pdata = dev->platdata; if (!is_valid_ethaddr(pdata->enetaddr)) { printf("\nError: %s address %pM illegal value\n", dev->name, pdata->enetaddr); |