linux-kernel - [PATCH] ALSA: 6Fire: Use common error handling code in usb6fire_chip

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Message-ID: <6b3e5ec7-557c-4330-4fa4-221530d6c811@users.sourceforge.net>
Date:   Wed, 6 Sep 2017 16:38:25 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     alsa-devel@...a-project.org,
        Arvind Yadav <arvind.yadav.cs@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Torsten Schenk <torsten.schenk@...o.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH] ALSA: 6Fire: Use common error handling code in
 usb6fire_chip_probe()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Wed, 6 Sep 2017 16:26:29 +0200

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/usb/6fire/chip.c | 31 +++++++++++++------------------
 1 file changed, 13 insertions(+), 18 deletions(-)

diff --git a/sound/usb/6fire/chip.c b/sound/usb/6fire/chip.c
index bc2a24f7a791..c7641cb50616 100644
--- a/sound/usb/6fire/chip.c
+++ b/sound/usb/6fire/chip.c
@@ -143,37 +143,32 @@ static int usb6fire_chip_probe(struct usb_interface *intf,
 	chip->card = card;
 
 	ret = usb6fire_comm_init(chip);
-	if (ret < 0) {
-		usb6fire_chip_destroy(chip);
-		return ret;
-	}
+	if (ret < 0)
+		goto destroy_chip;
 
 	ret = usb6fire_midi_init(chip);
-	if (ret < 0) {
-		usb6fire_chip_destroy(chip);
-		return ret;
-	}
+	if (ret < 0)
+		goto destroy_chip;
 
 	ret = usb6fire_pcm_init(chip);
-	if (ret < 0) {
-		usb6fire_chip_destroy(chip);
-		return ret;
-	}
+	if (ret < 0)
+		goto destroy_chip;
 
 	ret = usb6fire_control_init(chip);
-	if (ret < 0) {
-		usb6fire_chip_destroy(chip);
-		return ret;
-	}
+	if (ret < 0)
+		goto destroy_chip;
 
 	ret = snd_card_register(card);
 	if (ret < 0) {
 		dev_err(&intf->dev, "cannot register card.");
-		usb6fire_chip_destroy(chip);
-		return ret;
+		goto destroy_chip;
 	}
 	usb_set_intfdata(intf, chip);
 	return 0;
+
+destroy_chip:
+	usb6fire_chip_destroy(chip);
+	return ret;
 }
 
 static void usb6fire_chip_disconnect(struct usb_interface *intf)
-- 
2.14.1