Commit 83fba4a6 authored by Kuogee Hsieh's avatar Kuogee Hsieh Committed by Linux Build Service Account
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msm_fb: display: add mutex on overlay_play to fix iommu page fault 



An iommu page fault may heppen When a pipe_commit is executed
in between of frame dropped and pipe_queue during overlay play.
An mutex is necessary to mutual exclusive between pipe_commit
and overlay_play.

Change-Id: I736e821c6c648a6ebd435303a1906a40e9b75791
Signed-off-by: default avatarKuogee Hsieh <khsieh@codeaurora.org>
parent 41d1534f
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