From: Alan Ott <alan@signal11.us>
Date: Wed, 3 Apr 2013 04:00:58 +0000 (+0000)
Subject: 6lowpan: handle dev_queue_xmit() error code properly
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~65^2~209
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fc52eea4c5f160d1b42fa1852fece38e5a0fc991;p=pandora-kernel.git

6lowpan: handle dev_queue_xmit() error code properly

dev_queue_xmit() will return a positive value if the packet could not be
queued, often because the real network device (in our case the mac802154
wpan device) has its queue stopped.  lowpan_xmit() should handle the
positive return code (for the debug statement) and return that value to
the higher layer so the higher layer will retry sending the packet.

Signed-off-by: Alan Ott <alan@signal11.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
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