ALSA: hda - consolidate chip rename functions

[firefly-linux-kernel-4.4.55.git] / sound / hda / hdac_device.c

diff --git a/sound/hda/hdac_device.c b/sound/hda/hdac_device.c
index b3b0ad289df184ffb88370bc4594955a9ee02794..4b06b26cee06411d490d8ff49c1c2429f033dc4c 100644 (file)
--- a/sound/hda/hdac_device.c
+++ b/sound/hda/hdac_device.c
@@ -163,6 +163,28 @@ void snd_hdac_device_unregister(struct hdac_device *codec)
 }
 EXPORT_SYMBOL_GPL(snd_hdac_device_unregister);
 
+/**
+ * snd_hdac_device_set_chip_name - set/update the codec name
+ * @codec: the HDAC device
+ * @name: name string to set
+ *
+ * Returns 0 if the name is set or updated, or a negative error code.
+ */
+int snd_hdac_device_set_chip_name(struct hdac_device *codec, const char *name)
+{
+       char *newname;
+
+       if (!name)
+               return 0;
+       newname = kstrdup(name, GFP_KERNEL);
+       if (!newname)
+               return -ENOMEM;
+       kfree(codec->chip_name);
+       codec->chip_name = newname;
+       return 0;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_device_set_chip_name);
+
 /**
  * snd_hdac_make_cmd - compose a 32bit command word to be sent to the
  *     HD-audio controller