[alsa-devel] [PATCH] ASoc: hdmi-codec: remove HDMI device unregister

[Vincent Abriou]

While unregistering the hdmi-codec, the hdmi device list must be
cleaned up. It avoids kernel page fault when registering again the
hdmi-codec.

Cc: Liam Girdwood <lgirdwood at gmail.com>
Cc: Mark Brown <broonie at kernel.org>
Cc: Jaroslav Kysela <perex at perex.cz>
Cc: Takashi Iwai <tiwai at suse.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
Cc: Jyri Sarha <jsarha at ti.com>
Cc: Arnaud Pouliquen <arnaud.pouliquen at st.com>
Cc: Philipp Zabel <p.zabel at pengutronix.de>

Signed-off-by: Vincent Abriou <vincent.abriou at st.com>
---
 sound/soc/codecs/hdmi-codec.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/sound/soc/codecs/hdmi-codec.c b/sound/soc/codecs/hdmi-codec.c
index 90b5948..1ca405e 100644
--- a/sound/soc/codecs/hdmi-codec.c
+++ b/sound/soc/codecs/hdmi-codec.c
@@ -479,6 +479,18 @@ static int hdmi_codec_probe(struct platform_device *pdev)
 
 static int hdmi_codec_remove(struct platform_device *pdev)
 {
+	struct device *dev = &pdev->dev;
+	struct list_head *pos;
+
+	list_for_each(pos, &hdmi_device_list) {
+		struct hdmi_device *tmp = pos_to_hdmi_device(pos);
+
+		if (tmp->dev == dev->parent) {
+			list_del(pos);
+			break;
+		}
+	}
+
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
 }
-- 
2.7.4