msm_fb: display: Make sysfs read request interruptible
Change blocking sysfs read request to be interruptible and protect vsync timestamp value to prevent corruption. Change-Id: I510d84134b0ab70d17729e8c53c91fa926035142 Signed-off-by:Mayank Chopra <makchopra@codeaurora.org> Conflicts: drivers/video/msm/mdp4_overlay_dsi_cmd.c drivers/video/msm/mdp4_overlay_dsi_video.c Signed-off-by:
Siddhartha Agrawal <agrawals@codeaurora.org>
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