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commit93491ced3cupstream. Add define for the maximum number of ports on a SuperSpeed hub as per USB 3.1 spec Table 10-5, and use it when verifying the retrieved hub descriptor. This specifically avoids benign attempts to update the DeviceRemovable mask for non-existing ports (should we get that far). Fixes:dbe79bbe9d("USB 3.0 Hub Changes") Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [bwh: Backported to 3.2: - Add maxchild variable in hub_configure(), which was added separately upstream - Adjust filename] Signed-off-by: Ben Hutchings <ben@decadent.org.uk>