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d270bdf41e
The MDSS device is created before the MSM driver attempts to bind the sub components. If any of the components return -EPROBE_DEFER the MDSS device is destroyed and tried again later. If this happens the dpu_mdss_isr interrupt created from the DPU MDSS is not freed when the MDSS device is destroyed and has a risk of triggering later and hitting a fault by accessing a mmio region that no longer exists. Even if the interrupt isn't triggered by accident when the device attempts to reprobe it would error out when it tries to re-register the interrupt so unconditionally removing it in the destroy is the right move. Switch the device managed dpu_mdss_isr to be unmanaged and add a free_irq() in the mdss destroy function. Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Rob Clark <robdclark@gmail.com> |
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