diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_irq.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_irq.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 0b218285c2c..b201a214279 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1197,6 +1197,11 @@ static void ivb_pipe_crc_update(struct drm_device *dev, enum pipe pipe) struct intel_pipe_crc_entry *entry; int head, tail; + if (!pipe_crc->entries) { + DRM_ERROR("spurious interrupt\n"); + return; + } + head = atomic_read(&pipe_crc->head); tail = atomic_read(&pipe_crc->tail); |