linux-kernel - [PATCH 32/33] ASoC: max98095: use match

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Message-ID: <1526903890-35761-33-git-send-email-xieyisheng1@huawei.com>
Date:   Mon, 21 May 2018 19:58:09 +0800
From:   Yisheng Xie <xieyisheng1@...wei.com>
To:     <linux-kernel@...r.kernel.org>
CC:     Yisheng Xie <xieyisheng1@...wei.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        "Takashi Iwai" <tiwai@...e.com>, <alsa-devel@...a-project.org>
Subject: [PATCH 32/33] ASoC: max98095: use match_string() helper

match_string() returns the index of an array for a matching string,
which can be used intead of open coded variant.

Cc: Liam Girdwood <lgirdwood@...il.com>
Cc: Mark Brown <broonie@...nel.org>
Cc: Jaroslav Kysela <perex@...ex.cz>
Cc: Takashi Iwai <tiwai@...e.com>
Cc: alsa-devel@...a-project.org
Signed-off-by: Yisheng Xie <xieyisheng1@...wei.com>
---
 sound/soc/codecs/max98095.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/sound/soc/codecs/max98095.c b/sound/soc/codecs/max98095.c
index 6bf2d0b..0ef42dc 100644
--- a/sound/soc/codecs/max98095.c
+++ b/sound/soc/codecs/max98095.c
@@ -1634,15 +1634,12 @@ static void max98095_handle_eq_pdata(struct snd_soc_component *component)
 static int max98095_get_bq_channel(struct snd_soc_component *component,
 				   const char *name)
 {
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(bq_mode_name); i++)
-		if (strcmp(name, bq_mode_name[i]) == 0)
-			return i;
+	int ret = match_string(bq_mode_name, ARRAY_SIZE(bq_mode_name), name);
 
 	/* Shouldn't happen */
-	dev_err(component->dev, "Bad biquad channel name '%s'\n", name);
-	return -EINVAL;
+	if (ret < 0)
+		dev_err(component->dev, "Bad biquad channel name '%s'\n", name);
+	return ret;
 }
 
 static int max98095_put_bq_enum(struct snd_kcontrol *kcontrol,
-- 
1.7.12.4