drm/omap: tiler: fix race condition with engine->async

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The tiler irq handler uses engine->async value, but the code that sets
engine->async and enables the interrupt does not have a barrier. This
may cause the irq handler to see the old value of engine->async, causing
memory corruption.

Reported-by: Harinarayan Bhatta <harinarayan@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

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Tomi Valkeinen 2014-11-10 12:23:01 +02:00

parent 2dd3887b50

commit e7e24df471

1 changed files with 2 additions and 0 deletions

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drivers/gpu/drm/omapdrm/omap_dmm_tiler.c

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