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msm: mdss: refactor pipe retrieval and ref count logic
Allow only retrieval of pipes that are on particular framebuffer device used list. This ensures that pipe is not modified from a different fb device node and cause potential issues. Also, modify the ref count logic to use kref and ensure pipe is freed only while holding mutex in case there could be race condition that pipe is allocated while being freed. Change-Id: I626323b5df981a7ed1e03196126cd4376b5ba6a6 Signed-off-by:Adrian Salido-Moreno <adrianm@codeaurora.org> Signed-off-by:
Naseer Ahmed <naseer@codeaurora.org>
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- drivers/video/msm/mdss/mdss_mdp.h 3 additions, 1 deletiondrivers/video/msm/mdss/mdss_mdp.h
- drivers/video/msm/mdss/mdss_mdp_overlay.c 47 additions, 12 deletionsdrivers/video/msm/mdss/mdss_mdp_overlay.c
- drivers/video/msm/mdss/mdss_mdp_pipe.c 24 additions, 31 deletionsdrivers/video/msm/mdss/mdss_mdp_pipe.c
- drivers/video/msm/mdss/mdss_mdp_rotator.c 1 addition, 1 deletiondrivers/video/msm/mdss/mdss_mdp_rotator.c
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