From: Alan Cox <alan@linux.intel.com>
Date: Thu, 1 Nov 2012 16:45:49 +0000 (+0000)
Subject: ipwireless: don't oops if we run out of space
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d1519e23c2b3a518fb41daf3eceae43382433ceb;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

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

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>
---

diff --git a/drivers/tty/ipwireless/network.c b/drivers/tty/ipwireless/network.c
index 57102e66165..c0dfb642383 100644
--- a/drivers/tty/ipwireless/network.c
+++ b/drivers/tty/ipwireless/network.c
@@ -352,6 +352,8 @@ static struct sk_buff *ipw_packet_received_skb(unsigned char *data,
 	}
 
 	skb = dev_alloc_skb(length + 4);
+	if (skb == NULL)
+		return NULL;
 	skb_reserve(skb, 2);
 	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. */
 				skb = ipw_packet_received_skb(data, length);
-				ppp_input(network->ppp_channel, skb);
+				if (skb)
+					ppp_input(network->ppp_channel, skb);
 			} else
 				spin_unlock_irqrestore(&network->lock,
 						flags);