Re: [PATCH 4/5] xhci: Add an assertion to check for virt_dev=0 bug.

2011-03-28 Thread Sarah Sharp
On Fri, Mar 25, 2011 at 06:44:18PM +1100, Matt Evans wrote: During a plug-unplug stress test on an NEC xHCI card, a null pointer dereference was observed. xhci_address_device() dereferenced a null virt_dev (possibly an erroneous udev-slot_id?); this patch adds a WARN_ON message to aid debug

[PATCH 4/5] xhci: Add an assertion to check for virt_dev=0 bug.

2011-03-25 Thread Matt Evans
During a plug-unplug stress test on an NEC xHCI card, a null pointer dereference was observed. xhci_address_device() dereferenced a null virt_dev (possibly an erroneous udev-slot_id?); this patch adds a WARN_ON message to aid debug if it can be recreated. Signed-off-by: Matt Evans