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tty: ipwireless: check ppp register worked

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Otherwise we start trying to use a bogus channel - ungood.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alan Cox 2012-09-17 12:01:40 +01:00 committed by Greg Kroah-Hartman
parent 41fda9c4d9
commit b6abc90480
1 changed files with 6 additions and 1 deletions
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7
drivers/tty/ipwireless/network.c
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@ -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;
}