linux-kernel - [PATCH 1/3] ALSA: hal2: Use common error handling code in hal2

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Date:   Sat, 11 Nov 2017 19:11:55 +0100
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     alsa-devel@...a-project.org, Arnd Bergmann <arnd@...db.de>,
        Arvind Yadav <arvind.yadav.cs@...il.com>,
        Bhumika Goyal <bhumirks@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Mark Brown <broonie@...nel.org>, Takashi Iwai <tiwai@...e.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 1/3] ALSA: hal2: Use common error handling code in
 hal2_probe()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sat, 11 Nov 2017 18:26:06 +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/mips/hal2.c | 30 ++++++++++++++----------------
 1 file changed, 14 insertions(+), 16 deletions(-)

diff --git a/sound/mips/hal2.c b/sound/mips/hal2.c
index 37d378a26a50..30563d9aa5c8 100644
--- a/sound/mips/hal2.c
+++ b/sound/mips/hal2.c
@@ -887,21 +887,16 @@ static int hal2_probe(struct platform_device *pdev)
 		return err;
 
 	err = hal2_create(card, &chip);
-	if (err < 0) {
-		snd_card_free(card);
-		return err;
-	}
+	if (err < 0)
+		goto free_card;
 
 	err = hal2_pcm_create(chip);
-	if (err < 0) {
-		snd_card_free(card);
-		return err;
-	}
+	if (err < 0)
+		goto free_card;
+
 	err = hal2_mixer_create(chip);
-	if (err < 0) {
-		snd_card_free(card);
-		return err;
-	}
+	if (err < 0)
+		goto free_card;
 
 	strcpy(card->driver, "SGI HAL2 Audio");
 	strcpy(card->shortname, "SGI HAL2 Audio");
@@ -910,12 +905,15 @@ static int hal2_probe(struct platform_device *pdev)
 		SGI_HPCDMA_IRQ);
 
 	err = snd_card_register(card);
-	if (err < 0) {
-		snd_card_free(card);
-		return err;
-	}
+	if (err < 0)
+		goto free_card;
+
 	platform_set_drvdata(pdev, card);
 	return 0;
+
+free_card:
+	snd_card_free(card);
+	return err;
 }
 
 static int hal2_remove(struct platform_device *pdev)
-- 
2.15.0