musb: process control messages after roothub accepted it
When dealing with non-multipoint devices, if the software root hub code accepted the message, then we still need to process it normally. So only return quickly when the root hub skipped the message or is otherwise in an error state. Signed-off-by: NCliff Cai <cliff.cai@analog.com> Signed-off-by: NMike Frysinger <vapier@gentoo.org>
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