From: Oliver Neukum <oliver@neukum.org>
Date: Wed, 9 Sep 2009 08:12:48 +0000 (+0200)
Subject: USB: CDC WDM driver doesn't support non-blocking reads
X-Git-Tag: v2.6.32-rc1~174^2~136
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7f1dc313d01f5f0f84c06051343a3b8623932d3c;p=pandora-kernel.git

USB: CDC WDM driver doesn't support non-blocking reads

support for O_NONBLOCK in read and write path
by simply not waiting for data in read or availability
of the write urb in write but returning -EAGAIN

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Tested-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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