From: Krzysztof Mazur <krzysiek@podlesie.net>
Date: Thu, 22 Aug 2013 12:49:38 +0000 (+0200)
Subject: usb: fix cleanup after failure in hub_configure()
X-Git-Tag: v3.12-rc1~186^2~29
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d0308d4b6b02597f39fc31a9bddf7bb3faad5622;p=pandora-kernel.git

usb: fix cleanup after failure in hub_configure()

If the hub_configure() fails after setting the hdev->maxchild
the hub->ports might be NULL or point to uninitialized kzallocated
memory causing NULL pointer dereference in hub_quiesce() during cleanup.

Now after such error the hdev->maxchild is set to 0 to avoid cleanup
of uninitialized ports.

Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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