ASoC: codecs: wcd934x: fix resource leaks on component remove

Make sure to release allocated MBHC resources also on component remove.

This is specifically needed to allow probe deferrals of the sound card
which otherwise fails when reprobing the codec component.

Fixes: 9fb9b1690f0b ("ASoC: codecs: wcd934x: add mbhc support")
Cc: stable@vger.kernel.org      # 5.14
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230705123018.30903-6-johan+linaro@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/wcd934x.c b/sound/soc/codecs/wcd934x.c
index a17cd75..1b6e376 100644 (file)
--- a/sound/soc/codecs/wcd934x.c
+++ b/sound/soc/codecs/wcd934x.c
@@ -3044,6 +3044,17 @@ static int wcd934x_mbhc_init(struct snd_soc_component *component)
 
        return 0;
 }
+
+static void wcd934x_mbhc_deinit(struct snd_soc_component *component)
+{
+       struct wcd934x_codec *wcd = snd_soc_component_get_drvdata(component);
+
+       if (!wcd->mbhc)
+               return;
+
+       wcd_mbhc_deinit(wcd->mbhc);
+}
+
 static int wcd934x_comp_probe(struct snd_soc_component *component)
 {
        struct wcd934x_codec *wcd = dev_get_drvdata(component->dev);
@@ -3077,6 +3088,7 @@ static void wcd934x_comp_remove(struct snd_soc_component *comp)
 {
        struct wcd934x_codec *wcd = dev_get_drvdata(comp->dev);
 
+       wcd934x_mbhc_deinit(comp);
        wcd_clsh_ctrl_free(wcd->clsh_ctrl);
 }