ASoC: Fix WM8753 DAIs unregistering

WM8753 uses a tricky way to switch DAIs "on the fly", for that it
registers 2 dummy DAIs and substitutes them depending on mixer control.

List element of registered dummy DAIs should be preserved to allow
unregistering of DAIs on module unload.

Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/wm8753.c

@@ -1451,30 +1451,35 @@ static void wm8753_set_dai_mode(struct snd_soc_codec *codec, unsigned int mode)
 	if (mode < 4) {
 		int playback_active, capture_active, codec_active, pop_wait;
 		void *private_data;
+		struct list_head list;
 
 		playback_active = wm8753_dai[0].playback.active;
 		capture_active = wm8753_dai[0].capture.active;
 		codec_active = wm8753_dai[0].active;
 		private_data = wm8753_dai[0].private_data;
 		pop_wait = wm8753_dai[0].pop_wait;
+		list = wm8753_dai[0].list;
 		wm8753_dai[0] = wm8753_all_dai[mode << 1];
 		wm8753_dai[0].playback.active = playback_active;
 		wm8753_dai[0].capture.active = capture_active;
 		wm8753_dai[0].active = codec_active;
 		wm8753_dai[0].private_data = private_data;
 		wm8753_dai[0].pop_wait = pop_wait;
+		wm8753_dai[0].list = list;
 
 		playback_active = wm8753_dai[1].playback.active;
 		capture_active = wm8753_dai[1].capture.active;
 		codec_active = wm8753_dai[1].active;
 		private_data = wm8753_dai[1].private_data;
 		pop_wait = wm8753_dai[1].pop_wait;
+		list = wm8753_dai[1].list;
 		wm8753_dai[1] = wm8753_all_dai[(mode << 1) + 1];
 		wm8753_dai[1].playback.active = playback_active;
 		wm8753_dai[1].capture.active = capture_active;
 		wm8753_dai[1].active = codec_active;
 		wm8753_dai[1].private_data = private_data;
 		wm8753_dai[1].pop_wait = pop_wait;
+		wm8753_dai[1].list = list;
 	}
 	wm8753_dai[0].codec = codec;
 	wm8753_dai[1].codec = codec;