When no connection is opened we should not call into the networking stack. Otherwise it can happen that we delay further execution until the network stack detected a link (or timed out bringing the link up). Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> --- net/netconsole.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/net/netconsole.c b/net/netconsole.c index 2ab19de..86a68e1 100644 --- a/net/netconsole.c +++ b/net/netconsole.c @@ -81,6 +81,9 @@ static int nc_getc(struct console_device *cdev) struct nc_priv, cdev); unsigned char c; + if (!priv->con) + return 0; + while (!kfifo_len(priv->fifo)) net_poll(); @@ -94,6 +97,9 @@ static int nc_tstc(struct console_device *cdev) struct nc_priv *priv = container_of(cdev, struct nc_priv, cdev); + if (!priv->con) + return 0; + if (priv->busy) return kfifo_len(priv->fifo) ? 1 : 0; -- 1.9.1 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
