ALSA: hda - Release ELD proc file

Release ELD proc file when reconfigured so that no leak occurs.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/hda_eld.c

@@ -567,8 +567,17 @@ int snd_hda_eld_proc_new(struct hda_codec *codec, struct hdmi_eld *eld)
 	snd_info_set_text_ops(entry, eld, hdmi_print_eld_info);
 	entry->c.text.write = hdmi_write_eld_item;
 	entry->mode |= S_IWUSR;
+	eld->proc_entry = entry;
 
 	return 0;
 }
 
-#endif
+void snd_hda_eld_proc_free(struct hda_codec *codec, struct hdmi_eld *eld)
+{
+	if (!codec->bus->shutdown && eld->proc_entry) {
+		snd_device_free(codec->bus->card, eld->proc_entry);
+		eld->proc_entry = NULL;
+	}
+}
+
+#endif /* CONFIG_PROC_FS */

sound/pci/hda/hda_local.h

@@ -481,6 +481,9 @@ struct hdmi_eld {
 	int	spk_alloc;
 	int	sad_count;
 	struct cea_sad sad[ELD_MAX_SAD];
+#ifdef CONFIG_PROC_FS
+	struct snd_info_entry *proc_entry;
+#endif
 };
 
 int snd_hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid);
@@ -489,12 +492,17 @@ void snd_hdmi_show_eld(struct hdmi_eld *eld);
 
 #ifdef CONFIG_PROC_FS
 int snd_hda_eld_proc_new(struct hda_codec *codec, struct hdmi_eld *eld);
+void snd_hda_eld_proc_free(struct hda_codec *codec, struct hdmi_eld *eld);
 #else
 static inline int snd_hda_eld_proc_new(struct hda_codec *codec,
 				       struct hdmi_eld *eld)
 {
 	return 0;
 }
+static inline void snd_hda_eld_proc_free(struct hda_codec *codec,
+					 struct hdmi_eld *eld)
+{
+}
 #endif
 
 #define SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE 80

sound/pci/hda/patch_intelhdmi.c

@@ -637,7 +637,10 @@ static int intel_hdmi_init(struct hda_codec *codec)
 
 static void intel_hdmi_free(struct hda_codec *codec)
 {
-	kfree(codec->spec);
+	struct intel_hdmi_spec *spec = codec->spec;
+
+	snd_hda_eld_proc_free(codec, &spec->sink_eld);
+	kfree(spec);
 }
 
 static struct hda_codec_ops intel_hdmi_patch_ops = {