linux-kernel - [PATCH 2/2] ALSA: usx2y: Use common error handling code in submit

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Message-ID: <aa96b0c6-09cf-16c6-91e2-7fb490b815f3@users.sourceforge.net>
Date:   Wed, 6 Sep 2017 15:17:38 +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 2/2] ALSA: usx2y: Use common error handling code in
 submit_urbs()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Wed, 6 Sep 2017 15:00:08 +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/usb_stream.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/sound/usb/usx2y/usb_stream.c b/sound/usb/usx2y/usb_stream.c
index fe926cb9192e..4dab49080700 100644
--- a/sound/usb/usx2y/usb_stream.c
+++ b/sound/usb/usx2y/usb_stream.c
@@ -352,20 +352,22 @@ static int submit_urbs(struct usb_stream_kernel *sk,
 	int err;
 	prepare_inurb(sk->idle_outurb->number_of_packets, sk->idle_inurb);
 	err = usb_submit_urb(sk->idle_inurb, GFP_ATOMIC);
-	if (err < 0) {
-		snd_printk(KERN_ERR "%i\n", err);
-		return err;
-	}
+	if (err < 0)
+		goto report_failure;
+
 	sk->idle_inurb = sk->completed_inurb;
 	sk->completed_inurb = inurb;
 	err = usb_submit_urb(sk->idle_outurb, GFP_ATOMIC);
-	if (err < 0) {
-		snd_printk(KERN_ERR "%i\n", err);
-		return err;
-	}
+	if (err < 0)
+		goto report_failure;
+
 	sk->idle_outurb = sk->completed_outurb;
 	sk->completed_outurb = outurb;
 	return 0;
+
+report_failure:
+	snd_printk(KERN_ERR "%i\n", err);
+	return err;
 }
 
 #ifdef DEBUG_LOOP_BACK
-- 
2.14.1