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ipwireless: don't oops if we run out of space

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Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=49851

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 2012-11-01 16:45:49 +00:00 • committed by Greg Kroah-Hartman
parent 4bd82136cd
commit d1519e23c2
1 changed files with 4 additions and 1 deletions
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5
drivers/tty/ipwireless/network.c
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@ -352,6 +352,8 @@ static struct sk_buff *ipw_packet_received_skb(unsigned char *data,
} }
skb = dev_alloc_skb(length + 4); skb = dev_alloc_skb(length + 4);
if (skb == NULL)
return NULL;
skb_reserve(skb, 2); skb_reserve(skb, 2);
memcpy(skb_put(skb, length), data, length); memcpy(skb_put(skb, length), data, length);
@ -397,7 +399,8 @@ void ipwireless_network_packet_received(struct ipw_network *network,
/* Send the data to the ppp_generic module. */ /* Send the data to the ppp_generic module. */
skb = ipw_packet_received_skb(data, length); skb = ipw_packet_received_skb(data, length);
ppp_input(network->ppp_channel, skb); if (skb)
ppp_input(network->ppp_channel, skb);
} else } else
spin_unlock_irqrestore(&network->lock, spin_unlock_irqrestore(&network->lock,
flags); flags);