linux-kernel - [PATCH 2/3] ALSA: cs4281: Use common error handling code in snd_cs4281

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Date:   Mon, 13 Nov 2017 13:52:41 +0100
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     alsa-devel@...a-project.org, Bhumika Goyal <bhumirks@...il.com>,
        Fabian Frederick <fabf@...net.be>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Takashi Sakamoto <o-takashi@...amocchi.jp>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 2/3] ALSA: cs4281: Use common error handling code in
 snd_cs4281_probe()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Mon, 13 Nov 2017 13:10:11 +0100

Add a jump target so that a bit of exception handling can be better reused
at the end of this function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 sound/pci/cs4281.c | 52 ++++++++++++++++++++++++----------------------------
 1 file changed, 24 insertions(+), 28 deletions(-)

diff --git a/sound/pci/cs4281.c b/sound/pci/cs4281.c
index cf0bcab2a36b..ed6b97dbd1cc 100644
--- a/sound/pci/cs4281.c
+++ b/sound/pci/cs4281.c
@@ -1934,40 +1934,34 @@ static int snd_cs4281_probe(struct pci_dev *pci,
 		return err;
 
 	err = snd_cs4281_create(card, pci, &chip, dual_codec[dev]);
-	if (err < 0) {
-		snd_card_free(card);
-		return err;
-	}
+	if (err < 0)
+		goto free_card;
+
 	card->private_data = chip;
 
 	err = snd_cs4281_mixer(chip);
-	if (err < 0) {
-		snd_card_free(card);
-		return err;
-	}
+	if (err < 0)
+		goto free_card;
+
 	err = snd_cs4281_pcm(chip, 0);
-	if (err < 0) {
-		snd_card_free(card);
-		return err;
-	}
+	if (err < 0)
+		goto free_card;
+
 	err = snd_cs4281_midi(chip, 0);
-	if (err < 0) {
-		snd_card_free(card);
-		return err;
-	}
+	if (err < 0)
+		goto free_card;
+
 	err = snd_opl3_new(card, OPL3_HW_OPL3_CS4281, &opl3);
-	if (err < 0) {
-		snd_card_free(card);
-		return err;
-	}
+	if (err < 0)
+		goto free_card;
+
 	opl3->private_data = chip;
 	opl3->command = snd_cs4281_opl3_command;
 	snd_opl3_init(opl3);
 	err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
-	if (err < 0) {
-		snd_card_free(card);
-		return err;
-	}
+	if (err < 0)
+		goto free_card;
+
 	snd_cs4281_create_gameport(chip);
 	strcpy(card->driver, "CS4281");
 	strcpy(card->shortname, "Cirrus Logic CS4281");
@@ -1977,14 +1971,16 @@ static int snd_cs4281_probe(struct pci_dev *pci,
 		chip->irq);
 
 	err = snd_card_register(card);
-	if (err < 0) {
-		snd_card_free(card);
-		return err;
-	}
+	if (err < 0)
+		goto free_card;
 
 	pci_set_drvdata(pci, card);
 	dev++;
 	return 0;
+
+free_card:
+	snd_card_free(card);
+	return err;
 }
 
 static void snd_cs4281_remove(struct pci_dev *pci)
-- 
2.15.0