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drm/i915: Check num_pipes before initializing audio component
when num_pipes is zero, it indicates there is no display and HDMI audio doesn't exist. v2: Move the check from caller to callee for consistency. Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Signed-off-by: Elaine Wang <elaine.wang@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1482142746-21663-1-git-send-email-elaine.wang@intel.com
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@ -928,6 +928,9 @@ void i915_audio_component_init(struct drm_i915_private *dev_priv)
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{
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int ret;
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if (INTEL_INFO(dev_priv)->num_pipes == 0)
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return;
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ret = component_add(dev_priv->drm.dev, &i915_audio_component_bind_ops);
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if (ret < 0) {
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DRM_ERROR("failed to add audio component (%d)\n", ret);
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