[alsa-devel] [PATCH] ASoC: mediatek: mt8183: move card registration to the end of probe

Tzung-Bi Shih tzungbi at google.com
Wed May 22 16:54:02 CEST 2019


mt8183_mt6358_ts3a227_max98357_dev_probe() does not return immediately
if devm_snd_soc_register_card() returns fail.  As a result, the rest of
code still get executed.

Two options to fix:
1. add an extra return statement if devm_snd_soc_register_card()
   returns fail
2. move devm_snd_soc_register_card() to the end of probe

Adopt option 2 which is more clear and common.

Signed-off-by: Tzung-Bi Shih <tzungbi at google.com>
---
 .../soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c b/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
index 4e44e5689d6f..1efc7f5d04e4 100644
--- a/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
+++ b/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
@@ -345,7 +345,7 @@ mt8183_mt6358_ts3a227_max98357_dev_probe(struct platform_device *pdev)
 	struct device_node *platform_node;
 	struct snd_soc_dai_link *dai_link;
 	struct pinctrl *default_pins;
-	int ret, i;
+	int i;
 
 	card->dev = &pdev->dev;
 
@@ -380,11 +380,6 @@ mt8183_mt6358_ts3a227_max98357_dev_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	ret = devm_snd_soc_register_card(&pdev->dev, card);
-	if (ret)
-		dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
-			__func__, ret);
-
 	default_pins =
 		devm_pinctrl_get_select(&pdev->dev, PINCTRL_STATE_DEFAULT);
 	if (IS_ERR(default_pins)) {
@@ -393,7 +388,7 @@ mt8183_mt6358_ts3a227_max98357_dev_probe(struct platform_device *pdev)
 		return PTR_ERR(default_pins);
 	}
 
-	return ret;
+	return devm_snd_soc_register_card(&pdev->dev, card);
 }
 
 #ifdef CONFIG_OF
-- 
2.21.0.1020.gf2820cf01a-goog



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