xhci: Add rmb() between reading event validity & event data access.

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On weakly-ordered systems, the reading of an event's content must occur
after reading the event's validity.

Signed-off-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>

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Matt Evans 2011-03-29 13:40:51 +11:00 • committed by Sarah Sharp

parent 28ccd2962c

commit 92a3da410a

1 changed files with 5 additions and 0 deletions

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drivers/usb/host/xhci-ring.c

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