tree 2dd60da46d065e4df9e34fe031d13e38bfc22dff
parent 6deb270b5c60680ca9117bd545302ea6a58bad42
author Felipe Balbi <felipe.balbi@nokia.com> 1213256987 +0300
committer Greg Kroah-Hartman <gregkh@suse.de> 1216678586 -0700

usb: hub: add check for unsupported bus topology

We can't allow hubs on the 7th tier as they would allow
devices on the 8th tier.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>