Revert "drm/i915: Remove superfluous NULL check"

This reverts commit 89f41f4f90741fe94b6da9d4d366628a9b0be8f1.

It's possible that ->crtc is NULL in here. Noticed by Ville.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c
index 97302457e7f9ddaac2c85e28568d93c8a92c1aae..9aa83e71b792a70eb3115e3bdfa4a5859c969ec1 100644 (file)
--- a/drivers/gpu/drm/i915/intel_audio.c
+++ b/drivers/gpu/drm/i915/intel_audio.c
@@ -653,6 +653,10 @@ static int i915_audio_component_sync_audio_rate(struct device *dev,
                intel_dig_port = enc_to_dig_port(&intel_encoder->base);
                if (port == intel_dig_port->port) {
                        crtc = to_intel_crtc(intel_encoder->base.crtc);
+                       if (!crtc) {
+                               DRM_DEBUG_KMS("%s: crtc is NULL\n", __func__);
+                               continue;
+                       }
                        pipe = crtc->pipe;
                        break;
                }