ASoC: SOF: Intel: hda-mlink: add return value for hda_bus_ml_get_capabilities()

Add return value - this will need additional work in the caller.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20230404104127.5629-5-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/intel/hda-mlink.c

@@ -28,10 +28,11 @@
 
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
 
-void hda_bus_ml_get_capabilities(struct hdac_bus *bus)
+int hda_bus_ml_get_capabilities(struct hdac_bus *bus)
 {
 	if (bus->mlcap)
-		snd_hdac_ext_bus_get_ml_capabilities(bus);
+		return snd_hdac_ext_bus_get_ml_capabilities(bus);
+	return 0;
 }
 
 void hda_bus_ml_free(struct hdac_bus *bus)

sound/soc/sof/intel/hda.h

@@ -765,7 +765,7 @@ static inline int hda_codec_i915_exit(struct snd_sof_dev *sdev) { return 0; }
 
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
 
-void hda_bus_ml_get_capabilities(struct hdac_bus *bus);
+int hda_bus_ml_get_capabilities(struct hdac_bus *bus);
 void hda_bus_ml_free(struct hdac_bus *bus);
 void hda_bus_ml_put_all(struct hdac_bus *bus);
 void hda_bus_ml_reset_losidv(struct hdac_bus *bus);
@@ -774,7 +774,7 @@ int hda_bus_ml_suspend(struct hdac_bus *bus);
 
 #else
 
-static inline void hda_bus_ml_get_capabilities(struct hdac_bus *bus) { }
+static inline int hda_bus_ml_get_capabilities(struct hdac_bus *bus) { return 0; }
 static inline void hda_bus_ml_free(struct hdac_bus *bus) { }
 static inline void hda_bus_ml_put_all(struct hdac_bus *bus) { }
 static inline void hda_bus_ml_reset_losidv(struct hdac_bus *bus) { }