drm/i915: check the return value of intel_dp_i2c_init
We've been ignoring this return value, so print a nice backtrace in case it's not what we expected. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Zoltan Nyul <zoltan.nyul@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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@ -3044,7 +3044,7 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
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struct drm_i915_private *dev_priv = dev->dev_private;
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enum port port = intel_dig_port->port;
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const char *name = NULL;
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int type;
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int type, error;
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/* Preserve the current hw state. */
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intel_dp->DP = I915_READ(intel_dp->output_reg);
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@ -3142,7 +3142,9 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
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BUG();
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}
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intel_dp_i2c_init(intel_dp, intel_connector, name);
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error = intel_dp_i2c_init(intel_dp, intel_connector, name);
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WARN(error, "intel_dp_i2c_init failed with error %d for port %c\n",
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error, port_name(port));
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if (!intel_edp_init_connector(intel_dp, intel_connector)) {
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i2c_del_adapter(&intel_dp->adapter);
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