linux-kernel - [PATCH] ALSA: i2c: cs8427: Use common code in snd_cs8427_qsubcode

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Message-ID: <641210ba-571b-43e7-9007-5633a6c7434c@web.de>
Date: Sun, 15 Sep 2024 13:48:51 +0200
From: Markus Elfring <Markus.Elfring@....de>
To: linux-sound@...r.kernel.org, Jaroslav Kysela <perex@...ex.cz>,
 Takashi Iwai <tiwai@...e.com>
Cc: LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] ALSA: i2c: cs8427: Use common code in
 snd_cs8427_qsubcode_get()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sun, 15 Sep 2024 13:38:29 +0200

Add two labels so that a bit of exception handling can be better reused
at the end of this function implementation.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 sound/i2c/cs8427.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/sound/i2c/cs8427.c b/sound/i2c/cs8427.c
index 29a1a7a0d050..ee650006cac4 100644
--- a/sound/i2c/cs8427.c
+++ b/sound/i2c/cs8427.c
@@ -397,18 +397,25 @@ static int snd_cs8427_qsubcode_get(struct snd_kcontrol *kcontrol,
 	if (err != 1) {
 		dev_err(device->bus->card->dev,
 			"unable to send register 0x%x byte to CS8427\n", reg);
-		snd_i2c_unlock(device->bus);
-		return err < 0 ? err : -EIO;
+		goto recheck_err;
 	}
 	err = snd_i2c_readbytes(device, ucontrol->value.bytes.data, 10);
 	if (err != 10) {
 		dev_err(device->bus->card->dev,
 			"unable to read Q-subcode bytes from CS8427\n");
-		snd_i2c_unlock(device->bus);
-		return err < 0 ? err : -EIO;
+		goto recheck_err;
 	}
+
+	err = 0;
+unlock:
 	snd_i2c_unlock(device->bus);
-	return 0;
+	return err;
+
+recheck_err:
+	if (err >= 0)
+		err = -EIO;
+
+	goto unlock;
 }

 static int snd_cs8427_spdif_info(struct snd_kcontrol *kcontrol,
--
2.46.0