[RFC PATCH 1/1] ASoC: soc-dapm: warn if no avaiable path found for widget kcontrol

[Dong Aisheng]

From: Dong Aisheng <dong.aisheng at linaro.org>

This could help people know what's wrong going on if the required
path is not registered.

Signed-off-by: Dong Aisheng <dong.aisheng at linaro.org>
---
 sound/soc/soc-dapm.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 4d181df..b9b94c5 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -1879,6 +1879,9 @@ static int soc_dapm_mux_update_power(struct snd_soc_dapm_widget *widget,
 		}
 	}
 
+	WARN(!found, "did not find dapm widget path associated with kcontrol %s\n",
+		kcontrol->id.name);
+
 	if (found) {
 		dapm_mark_dirty(widget, "mux change");
 		dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP);
-- 
1.7.0.4