[PATCH v3 02/12] ASoC: mediatek: mt8189: Propagate MCK enable errors

[phucduc.bui@gmail.com]

From: bui duc phuc <phucduc.bui@gmail.com>

mt8189_mck_enable() currently returns without restoring the clock
state when setting the clock parent, enabling the divider, or setting
the divider rate fails.

Propagate the error and disable clocks enabled by the function.

Fixes: dc637ffeed6c ("ASoC: mediatek: mt8189: support audio clock control")
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---

Changes in v2:
 - Update the names of the goto labels.

 sound/soc/mediatek/mt8189/mt8189-afe-clk.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/sound/soc/mediatek/mt8189/mt8189-afe-clk.c b/sound/soc/mediatek/mt8189/mt8189-afe-clk.c
index f088ccf80448..56362c4756c9 100644
--- a/sound/soc/mediatek/mt8189/mt8189-afe-clk.c
+++ b/sound/soc/mediatek/mt8189/mt8189-afe-clk.c
@@ -639,7 +639,7 @@ int mt8189_mck_enable(struct mtk_base_afe *afe, int mck_id, int rate)
 		ret = mt8189_afe_set_clk_parent(afe, afe_priv->clk[m_sel_id],
 						afe_priv->clk[apll_clk_id]);
 		if (ret)
-			return ret;
+			goto err_disable_m_sel_clk;
 	}
 
 	/* enable div, set rate */
@@ -650,13 +650,21 @@ int mt8189_mck_enable(struct mtk_base_afe *afe, int mck_id, int rate)
 
 	ret = mt8189_afe_enable_clk(afe, afe_priv->clk[div_clk_id]);
 	if (ret)
-		return ret;
+		goto err_disable_m_sel_clk;
 
 	ret = mt8189_afe_set_clk_rate(afe, afe_priv->clk[div_clk_id], rate);
 	if (ret)
-		return ret;
+		goto err_disable_div_clk;
 
 	return 0;
+
+err_disable_div_clk:
+	mt8189_afe_disable_clk(afe, afe_priv->clk[div_clk_id]);
+err_disable_m_sel_clk:
+	if (m_sel_id >= 0)
+		mt8189_afe_disable_clk(afe, afe_priv->clk[m_sel_id]);
+
+	return ret;
 }
 
 int mt8189_mck_disable(struct mtk_base_afe *afe, int mck_id)
-- 
2.43.0