ASoC: wm8994: Move DCS done IRQ request later

once code return from request_threaded_irq, irq was setup enabled by
default, but completion var dcs_done not got initialized yet, if then a
dcs done irq was raised, system will got hung as the sync mechanism is
invalid now.

so this patch move dcs done irq request to the end of initialization
of completion.

Signed-off-by: wang, biao <biao.wang@intel.com>
Signed-off-by: Zhang, Di <di.zhang@intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 5 insertions, 6 deletions

diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 86426a117b07..b9be9cbc4603 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -4077,12 +4077,6 @@ static int wm8994_codec_probe(struct snd_soc_codec *codec)
         wm8994_request_irq(wm8994->wm8994, WM8994_IRQ_TEMP_SHUT,
                            wm8994_temp_shut, "Thermal shutdown", codec);
 
-        ret = wm8994_request_irq(wm8994->wm8994, WM8994_IRQ_DCS_DONE,
-                                 wm_hubs_dcs_done, "DC servo done",
-                                 &wm8994->hubs);
-        if (ret == 0)
-                wm8994->hubs.dcs_done_irq = true;
-
         switch (control->type) {
         case WM8994:
                 if (wm8994->micdet_irq) {
@@ -4313,6 +4307,11 @@ static int wm8994_codec_probe(struct snd_soc_codec *codec)
         }
 
         wm_hubs_add_analogue_routes(codec, 0, 0);
+        ret = wm8994_request_irq(wm8994->wm8994, WM8994_IRQ_DCS_DONE,
+                                 wm_hubs_dcs_done, "DC servo done",
+                                 &wm8994->hubs);
+        if (ret == 0)
+                wm8994->hubs.dcs_done_irq = true;
         snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon));
 
         switch (control->type) {