From 7838f2ce36b6ab5c13ef20b1857e3bbd567f1759 Mon Sep 17 00:00:00 2001
From: Thomas Graf <tgraf@redhat.com>
Date: Thu, 22 Dec 2011 02:05:07 +0000
Subject: [PATCH] mqprio: Avoid panic if no options are provided

Userspace may not provide TCA_OPTIONS, in fact tc currently does
so not do so if no arguments are specified on the command line.
Return EINVAL instead of panicing.

Signed-off-by: Thomas Graf <tgraf@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Reading git-format-patch failed