evie/android_kernel_oneplus_msm8998
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drm/msm: remove the right vlbank event from the event list

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This changes fixes an issue with vblank event list corruption.
we should only remove the event corresponding to a crtc from list
for which the thread was queued.

Change-Id: I9b9cef9073ba4cc377a85e21a7257d36e9b92388
Signed-off-by: Rahul Sharma <sharah@codeaurora.org>
This commit is contained in:
Rahul Sharma 2017-08-24 18:09:10 +05:30 • committed by Gerrit - the friendly Code Review server
parent fec05057ef
commit 792779946e
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/msm/msm_drv.c
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@ -185,9 +185,14 @@ static void vblank_ctrl_worker(struct kthread_work *work)
struct msm_kms *kms = priv->kms; struct msm_kms *kms = priv->kms;
struct vblank_event *vbl_ev, *tmp; struct vblank_event *vbl_ev, *tmp;
unsigned long flags; unsigned long flags;
struct kthread_worker *worker = work->worker;
struct msm_drm_commit *commit = container_of(worker,
struct msm_drm_commit, worker);
spin_lock_irqsave(&vbl_ctrl->lock, flags); spin_lock_irqsave(&vbl_ctrl->lock, flags);
list_for_each_entry_safe(vbl_ev, tmp, &vbl_ctrl->event_list, node) { list_for_each_entry_safe(vbl_ev, tmp, &vbl_ctrl->event_list, node) {
if (vbl_ev->crtc_id != commit->crtc_id)
continue;
list_del(&vbl_ev->node); list_del(&vbl_ev->node);
spin_unlock_irqrestore(&vbl_ctrl->lock, flags); spin_unlock_irqrestore(&vbl_ctrl->lock, flags);