linux-kernel - [PATCH 1/2] ALSA: us122l: Use common error handling code in us122l_create

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Message-ID: <cc84d72e-1474-2eb9-30cf-28034155bcc3@users.sourceforge.net>
Date:   Wed, 6 Sep 2017 15:16:29 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     alsa-devel@...a-project.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Arvind Yadav <arvind.yadav.cs@...il.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Johan Hovold <johan@...nel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Takashi Iwai <tiwai@...e.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 1/2] ALSA: us122l: Use common error handling code in
 us122l_create_card()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Wed, 6 Sep 2017 14:45:09 +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/usx2y/us122l.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/sound/usb/usx2y/us122l.c b/sound/usb/usx2y/us122l.c
index b49d6e953d52..159da1f3924e 100644
--- a/sound/usb/usx2y/us122l.c
+++ b/sound/usb/usx2y/us122l.c
@@ -508,8 +508,7 @@ static bool us122l_create_card(struct snd_card *card)
 		err = us122l_create_usbmidi(card);
 	if (err < 0) {
 		snd_printk(KERN_ERR "us122l_create_usbmidi error %i \n", err);
-		us122l_stop(us122l);
-		return false;
+		goto stop;
 	}
 	err = usb_stream_hwdep_new(card);
 	if (err < 0) {
@@ -518,10 +517,13 @@ static bool us122l_create_card(struct snd_card *card)
 		list_for_each(p, &us122l->midi_list)
 			snd_usbmidi_disconnect(p);
 
-		us122l_stop(us122l);
-		return false;
+		goto stop;
 	}
 	return true;
+
+stop:
+	us122l_stop(us122l);
+	return false;
 }
 
 static void snd_us122l_free(struct snd_card *card)
-- 
2.14.1