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path: root/drivers/gpu/drm/i915/intel_fbc.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_fbc.c')
-rw-r--r--drivers/gpu/drm/i915/intel_fbc.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
index 860b8c26d29b..3fca9fa39a8e 100644
--- a/drivers/gpu/drm/i915/intel_fbc.c
+++ b/drivers/gpu/drm/i915/intel_fbc.c
@@ -461,6 +461,8 @@ static void intel_fbc_schedule_activation(struct intel_crtc *crtc)
struct intel_fbc_work *work = &fbc->work;
WARN_ON(!mutex_is_locked(&fbc->lock));
+ if (WARN_ON(!fbc->enabled))
+ return;
if (drm_crtc_vblank_get(&crtc->base)) {
DRM_ERROR("vblank not available for FBC on pipe %c\n",
@@ -1216,7 +1218,7 @@ static void intel_fbc_underrun_work_fn(struct work_struct *work)
mutex_lock(&fbc->lock);
/* Maybe we were scheduled twice. */
- if (fbc->underrun_detected)
+ if (fbc->underrun_detected || !fbc->enabled)
goto out;
DRM_DEBUG_KMS("Disabling FBC due to FIFO underrun.\n");