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This patch (as940 renames hcd_data_lock in hcd.c to hcd_urb_list_lock, which is more descriptive of the lock's job. It also introduces a convenient inline routine for testing whether a particular USB device is a root hub. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>