Thomas Graf 7838f2ce36 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>

2011-12-22 22:34:56 -05:00

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