From: qianfan Zhao qianfanguijin@163.com
eth_device_priv maybe unaccessable after @stop handler due to eth device is removed in @stop, touch it will trigger data abort.
Fix data abort bug when run dhcp or tftp command via usbnet.
Signed-off-by: qianfan Zhao qianfanguijin@163.com --- net/eth-uclass.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/net/eth-uclass.c b/net/eth-uclass.c index 0da0e85be0..2b88b6c145 100644 --- a/net/eth-uclass.c +++ b/net/eth-uclass.c @@ -339,8 +339,15 @@ void eth_halt(void) return;
eth_get_ops(current)->stop(current); - priv->state = ETH_STATE_PASSIVE; - priv->running = false; + + /* ethernet device maybe removed when @stop handler, that will cause + * @priv is freed. get private data again to avoid it + */ + priv = dev_get_uclass_priv(current); + if (priv) { + priv->state = ETH_STATE_PASSIVE; + priv->running = false; + } }
int eth_is_active(struct udevice *dev)