From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Wed, 14 Mar 2012 09:21:44 +0000 (+0000)
Subject: wimax/i2400m: fix erroneous NETDEV_TX_BUSY use
X-Git-Tag: v3.3~2^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b8fbaef586176f6abe0eb7887ddae66e99898b79;p=pandora-kernel.git

wimax/i2400m: fix erroneous NETDEV_TX_BUSY use

A driver start_xmit() method cannot free skb and return NETDEV_TX_BUSY,
since caller is going to reuse freed skb.

In fact netif_tx_stop_queue() / netif_stop_queue() is needed before
returning NETDEV_TX_BUSY or you can trigger a ksoftirqd fatal loop.

In case of memory allocation error, only safe way is to drop the packet
and return NETDEV_TX_OK

Also increments tx_dropped counter

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

Reading git-diff-tree failed