From: Johan Hovold <johan@kernel.org>
Date: Wed, 10 May 2017 16:18:29 +0000 (+0200)
Subject: USB: hub: fix SS max number of ports
X-Git-Tag: v3.2.93~86
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bef118e469b2de6eea62be03a18f0897782d63f8;p=pandora-kernel.git

USB: hub: fix SS max number of ports

commit 93491ced3c87c94b12220dbac0527e1356702179 upstream.

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: dbe79bbe9dcb ("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>
---

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