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authorSarah Sharp <sarah.a.sharp@linux.intel.com>2009-05-14 11:44:22 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2009-06-15 21:44:51 -0700
commitf88ba78d9ac0e1f583da4cada80b8816ca761a3f (patch)
treee02af0c83817517c2c5ba20c3cf9335b2f4ab9a9 /MAINTAINERS
parenta4d88302268d1e458f7c6eb7855f1ba4b3a7cffc (diff)
USB: xhci: Respect critical sections.
Narrow down time spent holding the xHCI spinlock so that it's only used to protect the xHCI rings, not as mutual exclusion. Stop allocating memory while holding the spinlock and calling xhci_alloc_virt_device() and xhci_endpoint_init(). The USB core should have locking in it to prevent device state to be manipulated by more than one kernel thread. E.g. you can't free a device while you're in the middle of setting a new configuration. So removing the locks from the sections where xhci_alloc_dev() and xhci_reset_bandwidth() touch xHCI's representation of the device should be OK. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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