usb: fix cleanup after failure in hub_configure()

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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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Krzysztof Mazur 2013-08-22 14:49:38 +02:00 • committed by Greg Kroah-Hartman

parent f375fc520d

commit d0308d4b6b

1 changed files with 1 additions and 0 deletions

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drivers/usb/core/hub.c

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