From: Wolfram Sang <w.sang@pengutronix.de>
Date: Tue, 16 Nov 2010 17:50:47 +0000 (-0800)
Subject: irda: irttp: allow zero byte packets
X-Git-Tag: v2.6.37-rc3~3^2~20
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4c62ab9c538bc09c38093fa079e6902ea4d42b98;p=pandora-kernel.git

irda: irttp: allow zero byte packets

Sending zero byte packets is not neccessarily an error (AF_INET accepts it,
too), so just apply a shortcut. This was discovered because of a non-working
software with WINE. See

  http://bugs.winehq.org/show_bug.cgi?id=19397#c86
  http://thread.gmane.org/gmane.linux.irda.general/1643

for very detailed debugging information and a testcase. Kudos to Wolfgang for
those!

Reported-by: Wolfgang Schwotzer <wolfgang.schwotzer@gmx.net>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Tested-by: Mike Evans <mike.evans@cardolan.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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