From b6abc90480a6bff2c2ff4904b7ae708f51ce8c03 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Mon, 17 Sep 2012 12:01:40 +0100 Subject: [PATCH] tty: ipwireless: check ppp register worked Otherwise we start trying to use a bogus channel - ungood. Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman --- drivers/tty/ipwireless/network.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/tty/ipwireless/network.c b/drivers/tty/ipwireless/network.c index 57c8b481113f..d2af155dec8b 100644 --- a/drivers/tty/ipwireless/network.c +++ b/drivers/tty/ipwireless/network.c @@ -274,7 +274,12 @@ static void do_go_online(struct work_struct *work_go_online) network->xaccm[0] = ~0U; network->xaccm[3] = 0x60000000U; network->raccm = ~0U; - ppp_register_channel(channel); + if (ppp_register_channel(channel) < 0) { + printk(KERN_ERR IPWIRELESS_PCCARD_NAME + ": unable to register PPP channel\n"); + kfree(channel); + return; + } spin_lock_irqsave(&network->lock, flags); network->ppp_channel = channel; } -- 2.39.5